How can I do this in JavaScript?
var num = 2046430;
num.toLocaleString();
will give you 2,046,430;
What I have tried is:
var num = 2046430;
num.toLocaleString().toFixed(2);
Expected Output
2,046,430.00
Taken from MDN:
Syntax
numObj.toLocaleString([locales [, options]])
toLocaleString takes 2 arguments. The first is the locale, the second are the options. As for the options, you are looking for:
minimumFractionDigits
The minimum number of fraction digits to use.
Possible values are from 0 to 20; the default for plain number and
percent formatting is 0; the default for currency formatting is the
number of minor unit digits provided by the ISO 4217 currency code
list (2 if the list doesn't provide that information).
https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
To be able to set the options without setting the locale, you can pass undefined as first argument:
var num = 2046430;
num.toLocaleString(undefined, {minimumFractionDigits: 2}) // 2,046,430.00
However this also allows the fraction to be longer than 2 digits. So we need to look for one more option called maximumFractionDigits. (Also on that MDN page)
var num = 2046430.123;
num.toLocaleString(undefined, {
minimumFractionDigits: 2,
maximumFractionDigits: 2
}) // 2,046,430.12
