Extracting floating number from string

Question

I'm working on google maps, which is retuning distance in string like 1,230.6 km. From this I wanted to extract the floating number 1230.6.

Below is what I tried

var t = '1,234.04 km';
var a = t.replace(/[^0-9]/g, '') // 123404

parseFloat(t) // 1

How do I fix this with Regex ? Please guide

`parseFloat('1,234.04 km'.split(",").join(""))` you can remove the comma if the string always looks like your example — kevinSpaceyIsKeyserSöze, Jan 12 '21 at 08:56
duplicate of [12064575](https://stackoverflow.com/questions/4703390/how-to-extract-a-floating-number-from-a-string) — Mohammad Sadegh Foroughi, Jan 12 '21 at 08:56
FYI: Most languages return a [different result](https://docs.oracle.com/cd/E19455-01/806-0169/overview-9/index.html) because they use a comma for their decimal seperator — Reyno, Jan 12 '21 at 09:01

score 1 · Answer 1 · answered Jan 12 '21 at 08:57

1

You can do the following,

var t = '1,234.04 km';
var a = t.replace(/[^0-9.]/g, '')
    
console.log(parseFloat(a) )

answered Jan 12 '21 at 08:57

Md Sabbir Alam

4,937
3
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30

score 1 · Accepted Answer · answered Jan 12 '21 at 08:57

1

You can add . in your Regex:

var t = '1,234.04 km';
var a = t.replace(/[^0-9.]/g, '') // 1234.04

parseFloat(a) // 1234.04

answered Jan 12 '21 at 08:57

KValium

111
1
11

score 0 · Answer 3 · answered Jan 12 '21 at 09:07

0

let t = '1,234.04 km'.split(',').join('');
var regex = /[+-]?\d+(\.\d+)?/g;
var floats = t.match(regex).map(function(v) { return parseFloat(v); });
console.log(+floats);

answered Jan 12 '21 at 09:07

imh1j4l

95
5

This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. – ucMedia Jan 12 '21 at 09:59

Extracting floating number from string

3 Answers3