Number format with regex javascript

Question

I have a number is 1205000000, I want display at 1.205.000.000

number.toString().replace(/(\d{3})/g, "$1.").toString()

but result is 120.500.000.0 I don't want reverse a number.

score 0 · Answer 1 · edited May 23 '17 at 12:05

0

One way would be to reverse the string before your manipulation and ther reverse it again. Like so:

var number = 1205000000;

function reverse(s) {
    return s.split("").reverse().join("");
}

var str = reverse(reverse(number.toString()).replace(/(\d{3})/g, "$1."));
alert(str);

See this working fiddle.

EDIT: See the comments. Its a bit dirty but for that specific number it will work. The link posted by @Artyom Neustroev as a comment under you question seems a whole lot better than this here.

edited May 23 '17 at 12:05

Community

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answered Aug 15 '14 at 08:09

nozzleman

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Won't work correctly with float numbers. – Artyom Neustroev Aug 15 '14 at 08:11
1

please take care of `120500000` (or `100`) for that matter – ljgw Aug 15 '14 at 08:12
Yeah, you are both right. I've added your concerns as an edit to my answer, but for that specific case, it would work, so i wont delete the answer if you don't mind. – nozzleman Aug 15 '14 at 08:17

score 0 · Accepted Answer · answered Aug 15 '14 at 08:48

0

For the sake of correcting your regular expression (obviously for integer values only):

number.toString().replace(/(\d)(?=(?:\d{3})+$)/g, '$1.');

www.regexper.com
» Detailed Regex Explanation

answered Aug 15 '14 at 08:48

Emissary

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Number format with regex javascript

2 Answers2