# How To Split Decimal Number In Javascript

From: "Saved by Windows Internet Explorer 8" Subject: =?gb2312?B?1eO9rbTz0aejusfzysfQws7Fzfijuru206254sHZ?= Date: Tue, 1 Jun 2010 13:01:52 +0100 MIME-Version: 1. 25, I want it formatted as 1. JSON is a data format that is gaining popularity and used extensively in many AJAX powered Web sites. Annapurna Studios Pressmeet, Nagarjuna At Annapurna Studios Pressmeet, Annapoorna Studios Serioul Pressmeet, Pasupu Kunkuma, Sasi Rekha Parinayam, Puttinti Pattuchira Seriouls Pressmeet. CSCI 2910 JavaScript Part 3 Quiz Spring 2006 1. Other threads similar to read content of text file then convert to decimal number. The issue I have is he also says that it has more than one decimal point. Your task is to write a program or function that checks if a string is a valid phone number. In this number conversion tutorial we are learning to convert number between three commonly used number system, Binary, Octal and Hexadecimal. Decimal Number. For example,Enter a price: 2. There are 14 total digits per code. Related course: Data Analysis with Python Pandas. A number can be rounded off to 2 decimal places using 2 approaches: Method 1: Using the toFixed() method: The toFixed() method is used to return a string representation of a number up to a certain number of digits after the decimal point. Although this is a basic tutorial, I would suggest that you have some basic JavaScript knowledge to follow the concepts covered in this tutorial. TO_CHAR (x, ' 9999999999999999D00 ' ) returns a string representation of the number x, with 16 digits to left of the decimal point, and 2 digits to the right of the decimal point. Expand Clipping Planes — If on, the view's Display Depth is adjusted, along with the view origin and magnification, so that all elements on levels that are on for the view are displayed. I have a formula that gives a long decimal value, say 1. This following tutorial will illustrate how the JavaScript split function can help you to manipulate data and change the way data can be accessed or stored. I wrote a simple script that converts a decimal to a mixed number, proper, or improper fraction depending on the inputed decimal. What is the decimal point symbol in JavaScript? Is it always. Example - Round numbers to 2 decimal places It's easy to round whole numbers in JavaScript - use Math. I want the numbers formatted so that if they have decimal places they show to a maximum of two, and if they have no decimal places it doesn't show any. If there isn't one, it will be centered about the bounding box of the coordinates. Structure of array declaration. Stack Exchange Network Stack Exchange network consists of 175 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The best one in my opinion is to use the Number object, in a non-constructor context (without the new keyword): const count = Number('1234') //1234 This takes care of the decimals as well. How to split a number into its digits in Javascript? Ask. The toFixed() method converts a number into a string, keeping a specified number of decimals. I wrote some code to make your live a bit easier, in displaying decimal-aligned numbers. Find out duplicate number between 1 to N numbers. JavaScript String Split Function The ability to split up a string into separate chunks has been supported in many programming languages, and it is available in JavaScript as well. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 2", where the 2 refers to the 2 decimal points. Getting the integer portion is easy: n = Math. Note: If the parameter is a Date object, the Number() function returns the number of milliseconds since midnight January 1, 1970 UTC. Get Started → Release Note (v7. That parameter is not explained in the sections above, because it’s rarely used. To get your number into that format first, use this. This function will convert. 30 but i want to add one more logic that if usre type 00. TO_CHAR (x, ' 9999999999999999D00 ' ) returns a string representation of the number x, with 16 digits to left of the decimal point, and 2 digits to the right of the decimal point. Internally, a number is represented in 64-bit format IEEE-754, so there are exactly 64 bits to store a number: 52 of them are used to store the digits, 11 of them store the position of the decimal point (they are zero for integer numbers), and 1 bit is for the sign. I am new to SQL, where I am trying to split time intervals into multiple rows of one hour, together with an indicator of how many minutes the interval overlaps each hour. If you were to use a strict comparison to compare the two, it would fail because they're two different types of objects. This means that each digit in the number is multiplied by 10 raised to a power corresponding to that digit’s position:. Validate textbox for numeric,decimal number in javascript. In these instances, the function removes all decimal values and, depending on the value of Num_digits , rounds the number down to that many digits. This rate is used for the conversion of the revenue amount to the opportunity summary currency, if the currency of the revenue line is different from that of the opportunity. I want the numbers formatted so that if they have decimal places they show to a maximum of two, and if they have no decimal places it doesn't show any. AWK # syntax: GAWK -f NARCISSISTIC_DECIMAL_NUMBER. This is the amount that one currency can be exchanged for, at a specific point of time. The Adobe Acrobat User Community is a global resource for users of Acrobat and PDF, with free eseminars, tips, tutorials, videos and discussion forums. where I need to split it on the commas. It does not have symbols like 10 or 11, so it take letters as symbol from English alphabet. The one that we typically use is called decimal. 50 then it should retu. Number, pretty much don't use it The last ones are unary operators. How to Split the Decimal Value into integer and decimal part. The toFixed() method converts a number into a string, keeping a specified number of decimals. You may have to register before you can post: click the register link above to proceed. The minimum number of fraction digits to use. Repeating steps 2 and 3 some desired number of times. i want to apply the same functionality on blur of the textfield. getDecimals() // 4. The decimal system is the number system we use in everyday life. 518 divided by-- I'll do the division sign in white-- divided by. instead of. Precision: Used to restrict the output depending on the conversion. A thought struck me as I was writing a piece of JavaScript code that processed some floating point values. To perform addition, you might need to first convert the string to a number. However, as soon as one or more fields are empty, the result doesn't show and I get "NaN:01" as a result for the total time. 2 I want y to be 3 and z to be 0. Follow these 2 steps to convert a mixed number to a decimal:. Character encoding is useful in web development for displaying non-standard characters, generating character strings from numbers (CAPTCHA images for instance), and many other purposes. I have found some scripts that do this, however, I also want to format it this way in case someone enters LESS than 3 decimal places. Sum If this is your first visit, be sure to check out the FAQ by clicking the link above. getDecimals() // 4. ", and then counting the length of the second element of the array? What if a value of "100. OK, 1,453,752 is 101100010111010111000 is binary, now we turn it into a Hex number. Its position in the string is defined by the CurrencyNegativePattern and CurrencyPositivePattern properties of the NumberFormatInfo object returned by the GetFormat method of the provider parameter. To spilt a number into digits and print their sum, try to run. The const input string has 4 numbers in it: they are one or two digits long. If you would like to guarantee a specific number of decimal places in the conversion result, you can use the toFixed method rather than using toString or concatenating with an empty string. I need it urgently. The task is to write a program to transform a decimal number into a fraction in lowest terms. ", are organized logically, one after the other. for display on LCD. numbers that are written as: 9. And, I don't know why you resurrected a seven-month old thread to give your suggestion. The result array may also contain empty strings. In order to convert decimal to binary, take a look at the example below. To get a number converted to words you just need to call the function passing it the number you want to convert and the corresponding words will be returned. numbers that are written as: 9. Function Definition. Info: The earlier a digit occurs, the more times it must be multiplied by 10 to correctly parse the number. TO_CHAR (x, ' 9999999999999999D00 ' ) returns a string representation of the number x, with 16 digits to left of the decimal point, and 2 digits to the right of the decimal point. Convert a positive fraction value to a decimal value that can be cast to an integer or float value. Instead of summing all the powers of all the numbers at once, we sum the powers for this multiple of 10, then check each number 0 through 9 at once before summing the next multiple of 10. Write a program that asks the user to enter a price as a decimal number and then extracts the dollars and cents amounts. It returns true if the passed value is an integer, otherwise it return false. Definition and Usage. This table presents heaping using the number of times that one specific dividend is repeated. Converting strings to numbers with vanilla JavaScript In JavaScript, you can represent a number is an actual number (ex. Since JavaScript itself doesn't distinguish between octal, decimal, and binary numbers when it handles them in code, the question doesn't make sense except insofar as someone's JavaScript code could explicitly pass 036 as a parameter. For example,Enter a price: 2. '=DECIMAL("FF",16) Converts the hexadecimal (base 16) value FF to its equivalent decimal (base 10) value (255). 986244 But what if we are only interested in decimal portion (fractional part) of the number or we are interested in the integer (integral part) of the number?. You can easily add the IP-to-decimal widget on your website by copying the following HTML code and place it on your web page. The result of parseFloat is the number whose decimal representation was contained in that string (or the number found at the beginning of the. Enter any number into the box and choose currency. JavaScript / Ajax / DHTML Forums on Bytes. To get a number converted to words you just need to call the function passing it the number you want to convert and the corresponding words will be returned. How does the Split function work? text. How to convert from octal to decimal. It turns out that converting random numbers into formatted currency (with dollar signs, commas, and periods) is more difficult in JavaScript than I would have expected. Questions: I am trying to truncate decimal numbers to decimal places. Java String Split Tutorial And Examples. TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. */ thousandSeparator: ',', /** * @type String * @property decimalSeparator *. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. 3 answers 3. But you can use the toString() method to output numbers from base 2 to base 36. The continued fractions that eventually repeat are exactly the quadratic irrationals. Print a number with commas as thousands separators in JavaScript - Simple solution to solve these problem is Number. Given a string (or list of characters/codepoints) input, you will output a truthy value if the input is a valid phone number. Show both code and browser view!!. Q&A for Work. 2 would be split into two numbers, i. JavaScript | Split a string with multiple separators Given a statement which contains the string and separators, the task is to split the string into substring. 0-and use it apply struts logic tag in jsp. 9 (Zend Engine v2. Write a program to create deadlock between two threads. Method 1: Using split() mathod. ConversionRateType. However, the do-while loop make sure that the loop execute at least once before it fails. The json module enables you to convert between JSON and Python Objects. 5) Decimal separator; You wrote that You'll use values with or without decimals. Sometimes this data is a percentage in decimal format, and sometimes the website doesn't have precise data, so it gives two numbers. I hope this helps. So, as per LinYan's answer, you just need to use: TRUNC(A1) to obtain the integer part of the value in A1; A1-TRUNC(A1) to obtain the fractional part of the value in A1. Convert Binary to Decimal Numbers in Java. You can do this by getting the yticks, converting them to string with required number of decimal digits using num2str, and then setting them as yticklabels. The json module enables you to convert between JSON and Python Objects. TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. 00 and next number is places after 1. For example,Enter a price: 2. run: Enter the Binary value: 1010 Decimal:=10-----java - How to convert binary string value to decimal Java Convert Binary to Decimal,Binary to Decimal How to convert binary to decimal? Convert from binary to decimal? HOW TO CONVERT BINARY TO DECIMAL USING JAVA PROGRAM How do you convert a decimal number to binary in java?. For example :. toDecimal()). Write a program to reverse a string using recursive algorithm. For example 191,08 5. Convert a positive fraction value to a decimal value that can be cast to an integer or float value. I want to divide this thing completely and see what type of a decimal I actually get. Hoa Dang 103 views. typeof – If variable is a number, it will returns a string named “number”. Converts the specified string representation of a number to an equivalent decimal number, using the specified culture-specific formatting information. In SQL Server (Transact-SQL), the ROUND function returns a number rounded to a certain number of decimal places. Your task is to write a program or function that checks if a string is a valid phone number. C - JavaScript doesn't have any multithreading or multiprocess capabilities. NOTE: For converting numbers to binary, octal, or hexadecimal strings (or to any other base) see Converting to Another Base. I am having strange problems with the split function. -F footer Footer to put on image. -g mins[,color] Add a lat/lon grid every minutes (decimal allowed). Using a Python recipe? Installing ActivePython is the easiest way to run your project. commas) to a number Public Domain addCommas and addSeparatorsNF are released to the public domain. Getting the integer portion is easy: n = Math. This function assumes what is being submitted to it is a string, with a decimal point and two places after the decimal. The negative sign (-) is allowed. Next: As we read the string from the left to the right, the current digit is one tenth of the previous one. Numbers, commas, spaces, and a single period for the decimal point are the only acceptable characters that can be used for the number being converted. So, as per LinYan's answer, you just need to use: TRUNC(A1) to obtain the integer part of the value in A1; A1-TRUNC(A1) to obtain the fractional part of the value in A1. If we want to round to a set number of decimal places, then we have to handle that ourselves. It returns true if the passed value is an integer, otherwise it return false. How to: Parse Strings Using String. Since you have understood the mathematical conversion of binary to decimal numbers, let us understand how to write a code for it. What is the decimal point symbol in JavaScript? Is it always. Uses accounting. This can be done by using toString() method. The toString() method parses its first argument, and attempts to return a string representation in the specified radix (base). Questions and answers for LibreOffice. They are toFixed and toPrecision, and are part of the Number object. A Fraction instance can be constructed from a pair of integers, from another rational number, or from a string. We need convert the decimal number to two digit exponential decimal number, for that we are using toExponential(2) method. Converting month by create dictionary of Month name is less efective. 1101101110101111. formatMoney():. Be aware that because how Javascript handles decimal numbers, you are not able to represent small fractions in their decimal form. Platform specific directives: The full set of format codes supported varies across platforms, because Python calls the platform C library's strftime() function, and platform variations are common. 0 from alphanumeric string (say amount) having value $265. Web Toolkit Online works only in your browser, your data are secured. If there is only one argument, the number base is detected according to the general JavaScript syntax for numbers. The decimal system is said to have a base, or radix, of 10. Create your free Platform account to download our ready-to-use ActivePython or customize Python with any packages you require. I want the numbers formatted so that if they have decimal places they show to a maximum of two, and if they have no decimal places it doesn't show any. Sometimes this data is a percentage in decimal format, and sometimes the website doesn't have precise data, so it gives two numbers. There is no reason to use it in your code. length; is it spliting based on a ". The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28. Since you have understood the mathematical conversion of binary to decimal numbers, let us understand how to write a code for it. TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. 12+ or $265. So what I want to do is keep dividing. Internally, a number is represented in 64-bit format IEEE-754, so there are exactly 64 bits to store a number: 52 of them are used to store the digits, 11 of them store the position of the decimal point (they are zero for integer numbers), and 1 bit is for the sign. Description. The Number() function converts the object argument to a number that represents the object's value. Here’s a table with all the standard CSS3 selectors. Using: Please notice how the System. @faisalman: convertBase is written as a constructor, then you should use it as one. Tip: If an empty string ("") is used as the separator, the string is split between each character. When it comes to information then most of the time its about numbers and often numbers come with decimals i. Formatting numbers so they confirm to a specific format can be deceivingly tricky. Although JavaScript understands the English culture's decimal formatting, however it does not know how to. This is the amount that one currency can be exchanged for, at a specific point of time. This table presents heaping using the number of times that one specific dividend is repeated. What makes Decimal Counter so different is that it has been designed from the ground up to display proportional fonts in a. Right now it displays with no commas, and doesn't show the precision (i. Since JavaScript itself doesn't distinguish between octal, decimal, and binary numbers when it handles them in code, the question doesn't make sense except insofar as someone's JavaScript code could explicitly pass 036 as a parameter. When a time is expressed as a decimal that includes hours, the hours remain the same upon conversion. If it contains anything beyond these characters, it will return "not a number. In JavaScript, there are two ways to check if a variable is a number : isNaN() – Stands for “is Not a Number”, if variable is not a number, it return true, else return false. What I would like to have is the almost opposite of Number. Precision: Used to restrict the output depending on the conversion. How to convert decimal to hex in JavaScript? Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”? How can I convert a string to boolean in JavaScript? Set a default parameter value for a JavaScript function ; How can I get query string values in JavaScript?. I need to concatenate this field with another, so I would like to keep only the numbers before the decimal (the 4 and 14). Decimal and Thousands Separators. Let's do that for the same number 12. 5 instead of 1,000. 30 means in start 2 zero is invalid how to do that. AWK # syntax: GAWK -f NARCISSISTIC_DECIMAL_NUMBER. This chapter introduces the concepts, objects and functions used to work with and perform calculations using numbers and dates in JavaScript. ' , then count the decimal places, multiply etc etc Is there a faster more efficient method?. We need convert the decimal number to two digit exponential decimal number, for that we are using toExponential(2) method. All data is stored in a computer as a 0 or 1. Since you have understood the mathematical conversion of binary to decimal numbers, let us understand how to write a code for it. 0000 and 14. The number is rounded and the fractional part is padded if necessary to make it the specified length. Include space for expected commas and a decimal point in the determination of the width for numerical values. This method is used to split a string into an. Therefore it has to be represented as a string or some kind of object. See attached. The precision determines the number of significant digits before and after the decimal point and defaults to 6. There's no need to treat the number as a string when breaking it apart, when a number can be broken apart with a little math. Several JavaScript number format methods are offered with this language that you can use to manipulate numeric values. Here’s what our current JavaScript equivalent to PHP's number_format looks like. Formatting numbers for decimals and significant digits in JavaScript Formatting numbers so they confirm to a specific format can be deceivingly tricky. In this case text is split into parts of constant. So, let us look into each one of them one by one. Since you have understood the mathematical conversion of binary to decimal numbers, let us understand how to write a code for it. Casio Fx: a melhor seleção de Buscapé, esta quarta, ao melhor preço !Encontre aqui 97 ofertas, marcas, produtos em promoção e estoque pronto para ser enviado de forma rápida e segura em sua casa. JavaScript arrays can hold different types of data unlike other programming languages like C, C++, and Java. The first code. If parseFloat encounters a character other than a plus sign (+), minus sign (-U+002D HYPHEN-MINUS), numeral (0-9), decimal point (. The Number() function converts the object argument to a number that represents the object's value. */ thousandSeparator: ',', /** * @type String * @property decimalSeparator *. So if the number is 69. For instance, while rational numbers can be converted to decimal representation, some of them need an infinite number of digits to be represented exactly in decimal form. This is a really great reference and this can be used to either query nodes using dojo. Uses accounting. Below is the output of the code: 189,563,245. To acquire the numbers, we use the format string @"\D+" in the Regex. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. So samples which I want to allow will be 23, 23. Is that possible?Thanks. The format of a DecimalStringSplit region boundary is the ASCII representation of reversed sequential number, or any other uniformly distributed decimal value. The number is rounded and the fractional part is padded if necessary to make it the specified length. Solved: Hi, I have some data that uses decimals and commas. If it is not decimal number then just limit. What I would like to have is the almost opposite of Number. Validate decimal numbers. Write a program to reverse a string using recursive algorithm. io JSON API to get some financial data, but any JSON API should do. NOTE: For converting numbers to binary, octal, or hexadecimal strings (or to any other base) see Converting to Another Base. In this tutorial, we will learn the difference between string. A number can be rounded off to 2 decimal places using 2 approaches: Method 1: Using the toFixed() method: The toFixed() method is used to return a string representation of a number up to a certain number of digits after the decimal point. 'fm' means don't include the space padding. numbers that are written as: 9. If the configured value is NULL, the number of decimal places should default to 2. what is a function. Load text – get decimal. 07, i want an variable with 69 and an variable with 07. That parameter is not explained in the sections above, because it’s rarely used. ToDecimal(UInt64). However, as soon as one or more fields are empty, the result doesn't show and I get "NaN:01" as a result for the total time. To print integers in Java Programming, just initialize the integer value to the variable and place the variable in the bracket of System. Getting the integer portion is easy: n = Math. parseInt() method or custom logic. If number is negative, places is ignored and DEC2HEX returns a 10-character (40-bit) hexadecimal number in which the most significant bit is the sign bit. Converts the specified string representation of a number to an equivalent decimal number, using the specified culture-specific formatting information. Amounts in cents. Thanks Nicolas, Divya, and Oli for behind-the-scenes help. You can easily add the IP-to-decimal widget on your website by copying the following HTML code and place it on your web page. (for example: 4+5+6+3=18) I can write code for 3 digit or 2 digit and numbers seperately but I cant write a global code for each number. Well I don't want to round the value from the textbox. No matter what you do, it will return 19; goes the same for hexadecimal ones without double or single quotes) Number was also one of the slowest outcomes in JsPerf. In this case the base will be 16. For example, the following example uses the Regex. Binary is base 2. The OP wants two decimal places always, but if toFixed() is broken in Firefox it needs fixing first. Find out duplicate number between 1 to N numbers. TRUNC() is designed to remove the decimal part of any number immediately and without any modification to the non-decimal part. In our system it calculates the hours and minutes in the decimal format when calculating the total remaining time it returns number of hours '. This includes using numbers written in various bases including decimal, binary, and hexadecimal, as well as the use of the global Math object to perform a wide variety of mathematical operations on numbers. The Microsoft Access Format function takes a numeric expression and returns it as a formatted string. In SQL Server (Transact-SQL), the ROUND function returns a number rounded to a certain number of decimal places. You can easily add the IP-to-decimal widget on your website by copying the following HTML code and place it on your web page. The Perl subroutine does the job the JavaScript function does -- work with negative numbers as needed, rounds the number to the nearest hundredths, makes sure there are two digits following the decimal point, and returns the result. gulamdastagir Is there a way we can split this into two text boxes one displaying 99 Dollars and the. For example, a value of 3. Convert a positive fraction value to a decimal value that can be cast to an integer or float value. If you have the regular expression in a string (e. Write a program that asks the user to enter a price as a decimal number and then extracts the dollars and cents amounts. Invoke the split method on the string you want to split into array elements. The first line of the input contains a single integer T denoting the number of test cases. UNCLASSIFIED TIPS * share the current directory tree (via http) at http://$HOSTNAME:8000/ >> python -m SimpleHTTPServer * Copy ssh keys to [email protected] to enable. 95 The output is: 2 95. NaN (means "Not a Number") d) Converting Integer/Float to String Integer (int) or float value can be converted to string by using the function or method toString(). Free chmod converter download - chmod converter script - Top 4 Download - Top4Download. The script I found from this site is:. /** * Checks if number is in exponential format (eg: 1e-8 for 0. You can also use our online editor to edit and run the code online. 1101101110101111. Given a number and the task is to convert the number from decimal to hex. And that's a good thing, because as anyone who's done even a little programming knows, you can't always assume that something that looks like a number really is a number. 25, I want it formatted as 1. For example, "7-13%". Get JSON data. Return Values:. toPrecision(), meaning that when i have number, how many decimals does it have? E. '); this would also split at the decimal number, resulting in an incomplete sentence. Powerful, free, and fast. Obviously, this is not permitted. You can deal with the usort() function. 47, do the following:. The first argument is the value to parse and the second argument base. If we want to round to a set number of decimal places, then we have to handle that ourselves. In Matlab, how do I split a 6 digit number (possibly with leading zeros) into two entries of 3 numbers each? I have a number, such as 008123, that I want to split into 008 and 123 in Matlab. converts a number v to a float number and formats the string it with d decimals, used on input type text onblur=parseFloatStringthis. The result array may also contain empty strings. json exposes an API familiar to users of the standard library marshal and pickle modules. The precision determines the number of digits after the decimal point and defaults to 6. thanks RajniUsing split requires you to get the appropriate String first, of course (the OP didn't have a String). He does not want 15000. javascript. In our system it calculates the hours and minutes in the decimal format when calculating the total remaining time it returns number of hours '. This is the amount that one currency can be exchanged for, at a specific point of time. For each additional column, repeat steps 4-8. Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. They serve as the main “building block” of complex regular expressions, so let’s see more examples. Floating point numbers cannot represent all decimals precisely in binary which can lead to unexpected results such as 0. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: