regex to get all number from a string?

Question

I have a string like this:

AAAA 1 BBBB 2

I want to get all the number and return the result: 12

I tried \d but it just get the first number.

In conclusion, I want to get all the number from a string in order then combine it to make a new number.

Use this `var result = 'AAAA 1 BBBB 2'.match(/\d+/g);` – Hassan Imam Oct 11 '17 at 03:38 — Hassan Imam, Oct 11 '17 at 03:38
that returns an "array", @HassanImam – Jaromanda X Oct 11 '17 at 04:15 — Jaromanda X, Oct 11 '17 at 04:15
@JaromandaX Yes after that OP has to use `join('')` – Hassan Imam Oct 11 '17 at 04:16 — Hassan Imam, Oct 11 '17 at 04:16

score 3 · Accepted Answer · answered Oct 11 '17 at 03:39

3

You can extract out all number from your string using /\d+/g and then join the result to get your new number.

var result = 'AAAA 1 BBBB 2'.match(/\d+/g);
console.log(result.join(''));

answered Oct 11 '17 at 03:39

Hassan Imam

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Tim Biegeleisen · Answer 2 · 2017-10-11T03:46:01.673

2

I think your question can be satisfied by just removing all non numeric digits from the string. Then, you would be left with all numbers sandwiched togther.

var input = 'AAAA 1 BBBB 2';
input = input.replace(/[^0-9]/g, '');
console.log(input);

edited Oct 11 '17 at 03:46

answered Oct 11 '17 at 03:38

Tim Biegeleisen

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This is a nice way to do it! Great! – Anurat Chapanond Oct 11 '17 at 03:48
1

`[^0-9]` == `\D` does it not? and I'd use `.replace(/\D+/g, '')` instead :p – Jaromanda X Oct 11 '17 at 04:13

score 1 · Answer 3 · answered Oct 11 '17 at 05:18

Just check this code i hope it will fulfil your condition.

<script>
function myFunction() {
    var str = "AAAA 1 BBBB 2 CCCCC 6 asghj6adcgf 7"; 
    var patt1 = /\d+/g;
    var result = str.match(patt1);
    document.getElementById("demo").innerHTML = result;
}
</script>

score 0 · Answer 4 · answered Oct 11 '17 at 03:47

0

You can use parenthesis for grouping (\d) and execute it multiple times until nothing is matched.

const regex = /(\d)/g,
    str = 'AAAA 1 BBBB 2'

let match
while(match = regex.exec(str)) {
    console.log(match[0])
}

result

1
2

answered Oct 11 '17 at 03:47

Anurat Chapanond

2,837
3
18
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regex to get all number from a string?

4 Answers4