Yes remove the commas:
let output = parseFloat("2,299.00".replace(/,/g, ''));
console.log(output); Top answer 1 of 16
205
Yes remove the commas:
let output = parseFloat("2,299.00".replace(/,/g, ''));
console.log(output); 2 of 16
196
Removing commas is potentially dangerous because, as others have mentioned in the comments, many locales use a comma to mean something different (like a decimal place).
I don't know where you got your string from, but in some places in the world "2,299.00" = 2.299
The Intl object could have been a nice way to tackle this problem, but somehow they managed to ship the spec with only a Intl.NumberFormat.format() API and no parse counterpart :(
The only way to parse a string with cultural numeric characters in it to a machine recognisable number in any i18n sane way is to use a library that leverages CLDR data to cover off all possible ways of formatting number strings http://cldr.unicode.org/
The two best JS options I've come across for this so far:
- https://github.com/google/closure-library/tree/master/closure/goog/i18n
- https://github.com/globalizejs/globalize
Top answer 1 of 5
2
Did you add the locale to the toLocaleString function?
for example
javascript
var number = 12345.543;
number.toLocaleString('en')
if i print the above code in the console it shows "12,345.543"
2 of 5
0
I think you need to be VERY careful about security with a financial services company site if there is ANY identifiable information. You may need to encrypt the information if it is sensitive.
javascript - How can I format a number with commas as thousands separators? - Stack Overflow
I am trying to print an integer in JavaScript with commas as thousands separators. For example, I want to show the number 1234567 as "1,234,567". How would I go about doing this? Here is ... More on stackoverflow.com
Convert a number with commas as thousands separators
Hi everyone, I am trying to convert a number with commas as thousands separators, so I guess the number shall be converted to a string and then try to apply the format. I have found some JavaScript examples online, but when applying the solution it just converts the number to a string without ... More on forum.knime.com
0
0
June 8, 2021How do I convert an array to a string with commas in JavaScript
...you get a better, more thorough explanation here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/join More on reddit.com
1
4
April 13, 2023How do I insert comma between numbers?
u/zappsg 's recommendation is a lot better, but for the purpose of learning, here's one way you could do it with some comments explaining how it works: function formatNumber(num) { // If the number is less than zero, make a note of this var isNegative = num < 0; // Convert the number to a string with two decimal palces, // then split that string into an array of characters. If the // number was lower than zero, throw away the minus sign var tempNumArray = isNegative ? num.toFixed(2).split('').slice(1) : num.toFixed(2).split(''); // We're gonna keep track of the period so we know not to add commas after it var dotIndex = tempNumArray.indexOf('.'); // The number of digits to the left of the decimal point // is 3 less than the length of the array var integerCount = tempNumArray.length - 3; // Map over every digit in the array var formattedArray = tempNumArray.map(function(digit, index, arr) { // Check if we're in the whole digits var isBeforeDot = (index + 1) < dotIndex; // If we're in the whole digits, check if the number of whole digits still left to go % 3 is 0. // If it is, we need to add a comma, so we'll return the current digit plus a comma. if (isBeforeDot && (integerCount - (index + 1)) % 3 === 0) { return digit + ','; } else { // Otherwise we just return the digit. return digit; } // Join our newly mapped array back into a string }).join(''); // If our number was negative return it with a minus sign in front, // otherwise just return the number return isNegative ? '-' + formattedArray : formattedArray; } Then, to use it, you'd just do: "$ " + formatNumber(var1 + var2); More on reddit.com
3
1
December 12, 2016Videos
Bobby Hadz
bobbyhadz.com › blog › javascript-parse-string-with-comma-to-number
Parse a String with Commas to a Number in JavaScript | bobbyhadz
We replace each comma in the string with an empty string in order to remove the commas. The last step is to call the parseFloat() function with the result. The parseFloat function parses the provided string and returns a floating-point number.
YouTube
youtube.com › watch
Number to String with Commas in JavaScript - YouTube
👉 Source code: https://openjavascript.info/2022/05/24/converting-a-number-to-string-with-commas-javascript/⚡ Looking for high-performance, afforable web hos...
Published June 1, 2022
Favtutor
favtutor.com › articles › format-numbers-commas-javascript
Format Numbers with Commas in JavaScript (with code)
February 5, 2024 - We will employ the replace() method of the string and provide a regex pattern to identify the positions where commas should be inserted. We have to first convert the number to a string using the tostring() method.
DEV Community
dev.to › dhairyashah › how-to-seperate-number-with-commas-in-javascript-550k
How to seperate number with commas in Javascript - DEV Community
November 6, 2022 - The toLocalString() is a default built-in browser method of the Number object that returns the number (in string) representing the locale. You can pass any locale inside the parantheses as a parameter. const number = 14500240 const formatedNumber = number.toLocaleString("en-IN") console.log(formatedNumber) function numberWithCommas(num) { return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ','); } const number = numberWithCommas(234234.555); console.log(number);
DEV Community
dev.to › lavary › add-commas-to-numbers-in-javascript-explained-with-examples-27k8
Add commas to numbers in JavaScript (Explained with examples) - DEV Community
February 6, 2023 - Then, it uses to lookaheads to mark numbers in hundreds. Consequently, The replace() method places a comma in each match. Formatting numbers can be done in a variety of ways in JavaScript.
Medium
medium.com › @onlinemsr › big-numbers-no-worries-javascript-format-number-with-commas-17ec7f878834
Big Numbers, No Worries: JavaScript Format Number With Commas
March 23, 2024 - Learn how to use JavaScript format numbers with commas to display numbers in a readable way. An easy and practical guide.
Sabe
sabe.io › blog › javascript-format-numbers-commas
Format Numbers with Commas in JavaScript - Sabe.io
March 6, 2022 - The best way to format numbers in JavaScript is to use the toLocaleString() method. This method exists on the Number object and will return a string with the number formatted with commas.
Dhairyashah
dhairyashah.dev › posts › how-to-seperate-number-with-commas-in-javascript
How to seperate number with commas in Javascript
November 5, 2022 - When working with numbers in Javascript, you may need to format them to make them more readable. You can convert a number value to a comma-separated string. Here are two approaches: using toLocaleString() using Regex Conclusion
Top answer 1 of 15
5
I think this function will take care of all the issues related to this problem.
function commaFormat(inputString) {
inputString = inputString.toString();
var decimalPart = "";
if (inputString.indexOf('.') != -1) {
//alert("decimal number");
inputString = inputString.split(".");
decimalPart = "." + inputString[1];
inputString = inputString[0];
//alert(inputString);
//alert(decimalPart);
}
var outputString = "";
var count = 0;
for (var i = inputString.length - 1; i >= 0 && inputString.charAt(i) != '-'; i--) {
//alert("inside for" + inputString.charAt(i) + "and count=" + count + " and outputString=" + outputString);
if (count == 3) {
outputString += ",";
count = 0;
}
outputString += inputString.charAt(i);
count++;
}
if (inputString.charAt(0) == '-') {
outputString += "-";
}
//alert(outputString);
//alert(outputString.split("").reverse().join(""));
return outputString.split("").reverse().join("") + decimalPart;
}
2 of 15
5
If you're looking for a short and sweet solution:
const number = 12345678.99;
const numberString = String(number).replace(
/^\d+/,
number => [...number].map(
(digit, index, digits) => (
!index || (digits.length - index) % 3 ? '' : ','
) + digit
).join('')
);
// numberString: 12,345,678.99
Code Boxx
code-boxx.com › home › 3 ways to add comma to numbers in javascript (thousands separator)
3 Ways To Add Comma To Numbers In Javascript (Thousands Separator)
July 9, 2024 - Lastly, this is another manual alternative to adding commas to a number – · (A1) The “default settings” if none are provided. (A2) Round off if 0 decimal places. Remove this line if you don’t want to round off. (A3) Convert the number into a string, split it into the whole numbers and decimals.
KNIME Community
forum.knime.com › knime analytics platform
Convert a number with commas as thousands separators - KNIME Analytics Platform - KNIME Community Forum
June 8, 2021 - Hi everyone, I am trying to convert a number with commas as thousands separators, so I guess the number shall be converted to a string and then try to apply the format. I have found some JavaScript examples online, but when applying the solution it just converts the number to a string without ...
Medium
medium.com › @renatello › how-to-separate-numbers-with-commas-in-javascript-66dcdb36f5f0
How to separate numbers with commas in JavaScript | by Renat Galyamov | Medium
August 27, 2019 - In this tutorial, you’ll learn how to place a comma every three digits in JavaScript. var number = 123456 Number(number).toLocaleString() // → 123,456 · You can create a function that will take a string, convert it to a number and split this number with commas.
W3Resource
w3resource.com › javascript-exercises › javascript-math-exercise-39.php
JavaScript Math: Print an integer with commas as thousands separators - w3resource
// Define a function named thousands_separators that adds thousands separators to a number. function thousands_separators(num) { // Convert the number to a string and split it into an array containing the integer part and the decimal part.
GeeksforGeeks
geeksforgeeks.org › how-to-print-a-number-with-commas-as-thousands-separators-in-javascript
How to print a number with commas as thousands separators in JavaScript? | GeeksforGeeks
January 23, 2023 - The 'en-US' locale is used to specify that the locale takes the format of the United States and the English language, where numbers are represented with a comma between the thousands. The format() method of this object can be used to return a string of the number in the specified locale and formatting options.
Byby
byby.dev › js-format-numbers-commas
How to format numbers with commas in JavaScript
There are different ways to format numbers with commas and decimal places in JavaScript, depending on your needs and preferences. The Number.prototype.toLocaleString() method is used to format a number into a string representation according to the specified locale and formatting options.
Javascripts
javascripts.com › post › format-numbers-with-commas-in-javascript
How to Format Numbers with Commas in JavaScript | JavaScripts.com
The regular expression used in ... position with a comma, thereby adding commas as thousand separators to the number. Step 1: Convert the number to a string using toString() method....
DEV Community
dev.to › onlinemsr › big-numbers-no-worries-javascript-format-number-with-commas-n6j
Big Numbers, No Worries: JavaScript Format Number With Commas - DEV Community
March 23, 2024 - You have to do a lot of stuff and use many operations, like splitting, replacing, and JavaScript string join. You also have to use a regular expression, which is a powerful but tricky method that can find and change patterns in strings. You can use a third-party library, which is a bunch of code that someone else wrote for you. Many awesome third-party libraries can format numbers with commas in JavaScript.
Sabe
sabe.io › blog › javascript-parse-string-commas-to-number
How to Parse String with Commas to Number in JavaScript | Sabe
June 17, 2022 - In this post, we learned how to remove commas from a string and then parse it into a number. You can use either the replace or replaceAll methods to remove commas from a string, then use parseFloat or parseInt to convert the string into a number.