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NaN (not a number) when attempting output 2 decimal place for money value [duplicate]

I have a text box that will have a currency string in it that I then need to convert that string to a double to perform some operations on it.
"$1,100.00" → 1100.00
This needs to occur all client side. I have no choice but to leave the currency string as a currency string as input but need to cast/convert it to a double to allow some mathematical operations.

Remove all non dot / digits:
var currency = "-$4,400.50";
var number = Number(currency.replace(/[^0-9.-]+/g,""));

accounting.js is the way to go. I used it at a project and had very good experience using it.
accounting.formatMoney(4999.99, "€", 2, ".", ","); // €4.999,99
accounting.unformat("€ 1.000.000,00", ","); // 1000000
You can find it at GitHub

Use a regex to remove the formating (dollar and comma), and use parseFloat to convert the string to a floating point number.`
var currency = "$1,100.00";
currency.replace(/[$,]+/g,"");
var result = parseFloat(currency) + .05;

I know this is an old question but wanted to give an additional option.
The jQuery Globalize gives the ability to parse a culture specific format to a float.
https://github.com/jquery/globalize
Given a string "$13,042.00", and Globalize set to en-US:
Globalize.culture("en-US");
You can parse the float value out like so:
var result = Globalize.parseFloat(Globalize.format("$13,042.00", "c"));
This will give you:
13042.00
And allows you to work with other cultures.

I know this is an old question, but CMS's answer seems to have one tiny little flaw: it only works if currency format uses "." as decimal separator.
For example, if you need to work with russian rubles, the string will look like this:
"1 000,00 rub."
My solution is far less elegant than CMS's, but it should do the trick.
var currency = "1 000,00 rub."; //it works for US-style currency strings as well
var cur_re = /\D*(\d+|\d.*?\d)(?:\D+(\d{2}))?\D*$/;
var parts = cur_re.exec(currency);
var number = parseFloat(parts[1].replace(/\D/,'')+'.'+(parts[2]?parts[2]:'00'));
console.log(number.toFixed(2));
Assumptions:
currency value uses decimal notation
there are no digits in the string that are not a part of the currency value
currency value contains either 0 or 2 digits in its fractional part *
The regexp can even handle something like "1,999 dollars and 99 cents", though it isn't an intended feature and it should not be relied upon.
Hope this will help someone.

This example run ok
var currency = "$1,123,456.00";
var number = Number(currency.replace(/[^0-9\.]+/g,""));
console.log(number);

For anyone looking for a solution in 2021 you can use Currency.js.
After much research this was the most reliable method I found for production, I didn't have any issues so far. In addition it's very active on Github.
currency(123); // 123.00
currency(1.23); // 1.23
currency("1.23") // 1.23
currency("$12.30") // 12.30
var value = currency("123.45");
currency(value); // 123.45
typescript
import currency from "currency.js";
currency("$12.30").value; // 12.30

This is my function. Works with all currencies..
function toFloat(num) {
dotPos = num.indexOf('.');
commaPos = num.indexOf(',');
if (dotPos < 0)
dotPos = 0;
if (commaPos < 0)
commaPos = 0;
if ((dotPos > commaPos) && dotPos)
sep = dotPos;
else {
if ((commaPos > dotPos) && commaPos)
sep = commaPos;
else
sep = false;
}
if (sep == false)
return parseFloat(num.replace(/[^\d]/g, ""));
return parseFloat(
num.substr(0, sep).replace(/[^\d]/g, "") + '.' +
num.substr(sep+1, num.length).replace(/[^0-9]/, "")
);
}
Usage : toFloat("$1,100.00") or toFloat("1,100.00$")

// "10.000.500,61 TL" price_to_number => 10000500.61
// "10000500.62" number_to_price => 10.000.500,62
JS FIDDLE: https://jsfiddle.net/Limitlessisa/oxhgd32c/
var price="10.000.500,61 TL";
document.getElementById("demo1").innerHTML = price_to_number(price);
var numberPrice="10000500.62";
document.getElementById("demo2").innerHTML = number_to_price(numberPrice);
function price_to_number(v){
if(!v){return 0;}
v=v.split('.').join('');
v=v.split(',').join('.');
return Number(v.replace(/[^0-9.]/g, ""));
}
function number_to_price(v){
if(v==0){return '0,00';}
v=parseFloat(v);
v=v.toFixed(2).replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
v=v.split('.').join('*').split(',').join('.').split('*').join(',');
return v;
}

You can try this
var str = "$1,112.12";
str = str.replace(",", "");
str = str.replace("$", "");
console.log(parseFloat(str));

let thousands_seps = '.';
let decimal_sep = ',';
let sanitizeValue = "R$ 2.530,55".replace(thousands_seps,'')
.replace(decimal_sep,'.')
.replace(/[^0-9.-]+/, '');
// Converting to float
// Result 2530.55
let stringToFloat = parseFloat(sanitizeValue);
// Formatting for currency: "R$ 2.530,55"
// BRL in this case
let floatTocurrency = Number(stringToFloat).toLocaleString('pt-BR', {style: 'currency', currency: 'BRL'});
// Output
console.log(stringToFloat, floatTocurrency);

I know you've found a solution to your question, I just wanted to recommend that maybe you look at the following more extensive jQuery plugin for International Number Formats:
International Number Formatter

How about simply
Number(currency.replace(/[^0-9-]+/g,""))/100;
Works with all currencies and locales. replaces all non-numeric chars (you can have €50.000,00 or $50,000.00) input must have 2 decimal places

jQuery.preferCulture("en-IN");
var price = jQuery.format(39.00, "c");
output is: Rs. 39.00
use jquery.glob.js,
jQuery.glob.all.js

Here's a simple function -
function getNumberFromCurrency(currency) {
return Number(currency.replace(/[$,]/g,''))
}
console.log(getNumberFromCurrency('$1,000,000.99')) // 1000000.99

For currencies that use the ',' separator mentioned by Quethzel Diaz
Currency is in Brazilian.
var currency_br = "R$ 1.343,45";
currency_br = currency_br.replace('.', "").replace(',', '.');
var number_formated = Number(currency_br.replace(/[^0-9.-]+/g,""));

var parseCurrency = function (e) {
if (typeof (e) === 'number') return e;
if (typeof (e) === 'string') {
var str = e.trim();
var value = Number(e.replace(/[^0-9.-]+/g, ""));
return str.startsWith('(') && str.endsWith(')') ? -value: value;
}
return e;
}

This worked for me and covers most edge cases :)
function toFloat(num) {
const cleanStr = String(num).replace(/[^0-9.,]/g, '');
let dotPos = cleanStr.indexOf('.');
let commaPos = cleanStr.indexOf(',');
if (dotPos < 0) dotPos = 0;
if (commaPos < 0) commaPos = 0;
const dotSplit = cleanStr.split('.');
const commaSplit = cleanStr.split(',');
const isDecimalDot = dotPos
&& (
(commaPos && dotPos > commaPos)
|| (!commaPos && dotSplit[dotSplit.length - 1].length === 2)
);
const isDecimalComma = commaPos
&& (
(dotPos && dotPos < commaPos)
|| (!dotPos && commaSplit[commaSplit.length - 1].length === 2)
);
let integerPart = cleanStr;
let decimalPart = '0';
if (isDecimalComma) {
integerPart = commaSplit[0];
decimalPart = commaSplit[1];
}
if (isDecimalDot) {
integerPart = dotSplit[0];
decimalPart = dotSplit[1];
}
return parseFloat(
`${integerPart.replace(/[^0-9]/g, '')}.${decimalPart.replace(/[^0-9]/g, '')}`,
);
}
toFloat('USD 1,500.00'); // 1500
toFloat('USD 1,500'); // 1500
toFloat('USD 500.00'); // 500
toFloat('USD 500'); // 500
toFloat('EUR 1.500,00'); // 1500
toFloat('EUR 1.500'); // 1500
toFloat('EUR 500,00'); // 500
toFloat('EUR 500'); // 500

Such a headache and so less consideration to other cultures for nothing...
here it is folks:
let floatPrice = parseFloat(price.replace(/(,|\.)([0-9]{3})/g,'$2').replace(/(,|\.)/,'.'));
as simple as that.

$ 150.00
Fr. 150.00
€ 689.00
I have tested for above three currency symbols .You can do it for others also.
var price = Fr. 150.00;
var priceFloat = price.replace(/[^\d\.]/g, '');
Above regular expression will remove everything that is not a digit or a period.So You can get the string without currency symbol but in case of " Fr. 150.00 " if you console for output then you will get price as
console.log('priceFloat : '+priceFloat);
output will be like priceFloat : .150.00
which is wrong so you check the index of "." then split that and get the proper result.
if (priceFloat.indexOf('.') == 0) {
priceFloat = parseFloat(priceFloat.split('.')[1]);
}else{
priceFloat = parseFloat(priceFloat);
}

function NumberConvertToDecimal (number) {
if (number == 0) {
return '0.00';
}
number = parseFloat(number);
number = number.toFixed(2).replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1");
number = number.split('.').join('*').split('*').join('.');
return number;
}

This function should work whichever the locale and currency settings :
function getNumPrice(price, decimalpoint) {
var p = price.split(decimalpoint);
for (var i=0;i<p.length;i++) p[i] = p[i].replace(/\D/g,'');
return p.join('.');
}
This assumes you know the decimal point character (in my case the locale is set from PHP, so I get it with <?php echo cms_function_to_get_decimal_point(); ?>).

You should be able to handle this using vanilla JS. The Internationalization API is part of JS core: ECMAScript Internationalization API
https://www.w3.org/International/wiki/JavaScriptInternationalization
This answer worked for me: How to format numbers as currency strings

Javascript replace every 6th colon in array

I have some problems with replacing every 6th colon in my array. Have tried something with Regex, but that doesn't seem to work. I have red other questions were people are using nth and then set this variabele to the index you want to replace, but can't figure out why that isn't working. I used the join function to replace the ',' in my array with ':'.
arrayProducts[i] = arrayProducts[i].join(':');
When i use console.log(arrayProducts); this is my result:
F200:0:0.0000:1:100:0:1:KPO2:0:0.0000:1:200:0:2:HGB1:0:0.0000:1:300:0:3
This is what I want:
F200:0:0.0000:1:100:0:1,KPO2:0:0.0000:1:200:0:2,HGB1:0:0.0000:1:300:0:3
Thanks for reading!
Edit: F200, KP02 and HGB1, could also be numbers / digits like: 210, 89, 102 so the :[A-Z] method from regex doesn't work.

You can just count the number of colon occurences and replace every nth of them.
var str = 'F200:0:0.0000:1:100:0:1:KPO2:0:0.0000:1:200:0:2:HGB1:0:0.0000:1:300:0:3', counter = 0;
res = str.replace(/:/g, function(v) {
counter++;
return !(counter % 7) ? ',' : v;
});
console.log(res);

A regex solution is viable. You can use a function as the second parameter of the .replace method to make full use of backreferences.
var str = 'F200:0:0.0000:1:100:0:1:KPO2:0:0.0000:1:200:0:2:HGB1:0:0.0000:1:300:0:3';
str = str.replace(/((?:[^:]*:){6}(?:[^:]*)):/g, function() {
var matches = arguments;
return matches[1] + ',';
});
console.log(str);

What you are looking for is to split over the following expression :[A-Z]
(assuming that your rows always start with this range)
a simple solution could be:
mystring.split(/:[A-Z]/).join(',')
/:[A-Z]/ matches any : followed by a uppercase letter

You could use replace with a look for six parts with colon and replace the seventh.
var string = 'F200:0:0.0000:1:100:0:1:KPO2:0:0.0000:1:200:0:2:HGB1:0:0.0000:1:300:0:3',
result = string.replace(/(([^:]*:){6}[^:]*):/g, '$1,');
console.log(result);

Another solution (based on the number of iteration)
using map method:
str.split(':').map((v, i) => (i % 7 === 0 ? ',' : ':') + v ).join('').slice(1)
using reduce method:
str.split(':').reduce((acc,v, i) => {
return acc + (i % 7 === 0 ? ',' : ':' ) + v ;
}, '').slice(1)
Note: arrow expression does not work on old browsers

maybe you can try this approach,
loop your array and join it manually, something like :
var strarr = "F200:0:00000:1:100:0:1:KPO2:0:00000:1:200:0:2:HGB1:0:00000:1:300:0:3";
var arr = strarr.split(":")
var resStr = "";
for(var i = 0; i < arr.length; i++)
{
if(i > 0 && i%7 == 0)
resStr = resStr + "," + arr[i]
else
resStr = resStr + ( resStr == "" ? "" : ":") + arr[i];
}
console.log(resStr);

Move comma position JavaScript

I'm trying to move the position of the comma with the use of JavaScript. I have managed to remove all the parts of the string I needed removing. The only problem is that the comma is in the wrong position.
The current outcome is 425.00, but I simply want '42.50'
success: function(result) {
if (result != '') {
alert(" "+result+" ");
}
var discountVal = result.replace(/\D/g,'');
newDiscountVal = discountVal.replace(7.50, '');
$("input#amount").val(discountVal);
}
I am grabbing database echo values with a combination of string and echo - numbers..

You could divide by ten, then convert back to a String using toFixed(2) which forces formatting of 2 decimal places
Javascript allows implicit conversion of Strings to numbers, by firstly converting the String to a Number so it is valid to divide a String by a number.
var input= "4250.00";
var output = (original / 100).toFixed(2); // => "42.50"
Note this method has different behaviour due to rounding. Consider the case 9.99. If you use a string manipulation technique you'll get ".99", with divide by 10 method above you'll get "1.00". However from what has been said in comments I believe your inputs always end .00 and never anything else, so there will be no difference in reality.

If it is number you can just divide by 10
If it is string you can do like this:
var ind = text.indexOf('.');
text = text.replace('.', '');
text.slice(0, ind-1) + '.' + text.slice(ind-1, text.length)

Here is a solution:
function moveComma(val, moveCommaByInput) {
if (val || typeof val === 'number') {
const valueNumber = Number(val);
const moveCommaBy = moveCommaByInput || 0;
if (isNaN(valueNumber)) {
return null;
} else {
return Number(`${valueNumber}e${moveCommaBy}`);
}
}
return null;
}

This is how i solved it..
var discountVal = result.replace(/\D/g, '');
var newDiscountVal = discountVal.replace(7.50, '');
var lastDigits = newDiscountVal.substr(newDiscountVal.length - 2);
var removedDigits = newDiscountVal.slice(0,newDiscountVal.length - 2);
var discountRealValue = removedDigits + '.' + lastDigits;
$("input#amount").val(discountRealValue);
Cheers

Adding comma as thousands separator (javascript) - output being deleted instead

I am attempting to dynamically adjust a numerical value entered to include thousand separators
Here is my code:
function addCommas(nStr) {
nStr += '';
x = nStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
<input type="number" onkeyup="this.value=addCommas(this.value);" />
However when I enter numbers after the 4 one, the field is cleared.
Any ideas where I am going wrong? If there is a jQuery solution I'm already using that on my site.

Try this regex:
function numberWithCommas(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

To add the thousands separator you could string split, reverse, and replace calls like this:
function addThousandsSeparator(input) {
var output = input
if (parseFloat(input)) {
input = new String(input); // so you can perform string operations
var parts = input.split("."); // remove the decimal part
parts[0] = parts[0].split("").reverse().join("").replace(/(\d{3})(?!$)/g, "$1,").split("").reverse().join("");
output = parts.join(".");
}
return output;
}
addThousandsSeparator("1234567890"); // returns 1,234,567,890
addThousandsSeparator("12345678.90"); // returns 12,345,678.90

Try
<input type="text" onkeyup="this.value=addCommas(this.value);" />
instead. Since the function is working with text not numbers.

as Dillon mentioned, it needs to be a string (or you could use typeof(n) and stringify if not)
function addCommas(n){
var s=n.split('.')[1];
(s) ? s="."+s : s="";
n=n.split('.')[0]
while(n.length>3){
s=","+n.substr(n.length-3,3)+s;
n=n.substr(0,n.length-3)
}
return n+s
}

In each case before formatting try to remove existing commas first, like there: Removing commas in 'live' input fields in jquery
Example:
function addThousandsSeparator(x) {
//remove commas
retVal = x ? parseFloat(x.replace(/,/g, '')) : 0;
//apply formatting
return retVal.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

How can I add a comma to separate each group of three digits in a text input field?

I have a text input field for a form where users are meant to enter a number. I would like to automatically insert a comma after every third digit.
For example, entering '20' would result in '20'. Entering '100' would result in '100'. But if they were to enter '1000', a comma would be inserted between the 1 and the following 0's (e.g., 1,000). Obviously this behaviour would continue should the number reach 7 digits (e.g., 1,000,000).
Is there an easy way to do this? I'm a bit of a newb at all of this, so please answer like you're talking to a child :)

The following javascript:
function format(input)
{
var nStr = input.value + '';
nStr = nStr.replace( /\,/g, "");
var x = nStr.split( '.' );
var x1 = x[0];
var x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while ( rgx.test(x1) ) {
x1 = x1.replace( rgx, '$1' + ',' + '$2' );
}
input.value = x1 + x2;
}
and the following HTML:
<input type="text" onkeyup="format(this)">
should solve your problem. The key is to use 'onkeyup'.
Try it here http://jsfiddle.net/YUSph/

for the fun of it:
'9876543210'
.split('') // flip the entire string so that we can break every
.reverse() // 3rd digit, starting from the end
.join('')
.split(/(...)/) // split on every 3rd
.reverse() // flip the string again, though now each group of 3 is
.join(',') // backwards
.replace(/,(?=,)|,$|^,/g, '') // remove extra ,
.replace(/(,|^)(\d)(\d)?(\d)?/g, '$1$4$3$2') // flip each group of digits
// 9,876,543,210
Anyone want to take a stab at making that better?

function addCommas(nStr){
nStr += '';
x = nStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
Pass the value of the input into function and set the input with the result returned. You can bind this to an onchange event.
Here is a working example that relies on jquery to bind the change event and set the value: http://jsfiddle.net/TYyfn/
Comma script is from: http://www.mredkj.com/javascript/nfbasic.html

Yes, it's not terribly difficult. I believe this reference may give you what you need.
Note that for this to be dynamic (as they type) you'd need to have this wired to the input field change handler. Otherwise, you can wire this to the input field blur handler (which will have the effect of putting the commas in the field when they leave the field).

Give this a try: it may need a little tweeking.
take the function from above: function addCommas(nStr){...} and put in a js file.
add a script link in the page header to jquery library with:
src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"
be sure your text box has a unique id. ex: id="comma_input".
in the same js file add
$(document).ready(function(){
$('#comma_input').keyup(function(){
$(this).attr('value',addCommas($(this).attr('value')));
});
});

function addCommas(nStr){
var offset = nStr.length % 3;
if (offset == 0)
return nStr.substring(0, offset) + nStr.substring(offset).replace(/([0-9]{3})(?=[0-9]+)/g, "$1,");
else
return nStr.substring(0, offset) + nStr.substring(offset).replace(/([0-9]{3})/g, ",$1");
}
alert(addCommas("1234567"));

Another way to do it, no RegEx, just array manipulation:
function decimalMark(s) {
for (var a = s.split("").reverse(), b = [], i = 0; i < a.length; i++) {
if (i && i%3 === 0)
b.unshift(",");
b.unshift(a[i]);
}
return b.join("");
}
Be sure to pass a string to the function
decimalMark("1234")

Simple string solution in pure JS:
function addCommas(e) {
var tgt = e.target, val = tgt.value.replace(/,/g, ''),
amt = Math.ceil(val.length/3), newStr = '', x = 0;
while ( x <= amt ) {
newStr += val.slice(x*3,(x+1)*3);
newStr += ( x < amt-1 ) ? ',' : '';
x++
}
tgt.value = newStr;
}
document.getElementById('test').addEventListener('change', addCommas, false);
Demo: http://jsfiddle.net/kevinvanlierde/TYyfn/141/

You can use standart JavaScript functions. Example here;
http://jsfiddle.net/azur/jD5pa/
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>pure js solution</title>
<script type='text/javascript'>
function digitGroup(dInput) {
var output = "";
try {
dInput = dInput.replace(/[^0-9]/g, ""); // remove all chars including spaces, except digits.
var totalSize = dInput.length;
for (var i = totalSize - 1; i > -1; i--) {
output = dInput.charAt(i) + output;
var cnt = totalSize - i;
if (cnt % 3 === 0 && i !== 0) {
output = " " + output; // seperator is " "
}
}
} catch (err)
{
output = dInput; // it won't happen, but it's sweet to catch exceptions.
}
return output;
}
</script>
</head>
<body>
<input type="text" value="53" onkeyup="this.value = digitGroup(this.value);">
</body>
</html>

var formatNumber = function(num, type) {
var numSplit, int, dec, type;
num = Math.abs(num);
num = num.toFixed(2);
numSplit = num.split('.')
int = numSplit[0];
if (int.length >= 3) {
int = int.substr(0, int.length - 3) + ',' + int.substr(int.length - 3, 3);
}
dec = numSplit[1];
return (type === 'exp'? sign = '-' : '+') + ' ' + int + '.' + dec;
};