you can also use this code ... like today, with every browser, and right
away ...
```javascript
function match(regex, haystack){
var result = [], g = regex.global, match;
do { match = regex.exec(haystack) }
while(match && result.push(match) && g);
if (!g) regex.lastIndex = 0;
return result;
}
var input = "I have 5 dogs, 3 cats, and 49 ants.";
match(/\d+/, input)
match(/\d+/g, input)
```
Best Regards
On Wed, Jul 16, 2014 at 1:01 AM, Frankie Bagnardi <[email protected]>
wrote:
> You could wrap it in an iterator :-)
>
> http://www.es6fiddle.net/hxoczoqg/
>
> ```javascript
> function* match(regex, haystack){
> var {source, ignoreCase} = regex;
> var newRegex = new RegExp(source, ignoreCase ? 'gi' : 'g');
> var m = null;
> while (m = newRegex.exec(haystack)) {
> yield m;
> }
> }
>
> var input = "I have 5 dogs, 3 cats, and 49 ants.";
>
> for (let num of match(/\d+/, input)) {
> console.log(num);
> }
> ```
>
>
>
> On Wed, Jul 16, 2014 at 12:53 AM, Axel Rauschmayer <[email protected]>
> wrote:
>
>> Yes, the /g flag is confusing, because the regular expression kind of
>> turns into an iterator. I’d much prefer an actual iterator-based API that
>> doesn’t mutate the regular expression.
>>
>> On Jul 16, 2014, at 9:26 , Alex Vincent <[email protected]> wrote:
>>
>> r = /\u0020+$/g; p = r.exec(" "); q = r.exec(" "); JSON.stringify([p,
>> q])
>> // "[[\" \"],null]"
>>
>> Why does calling exec the second time generate null? When I try the
>> regular expression without the /g flag, I get:
>> // "[[\" \"],[\" \"]]"
>>
>>
>>
>> --
>> "The first step in confirming there is a bug in someone else's work is
>> confirming there are no bugs in your own."
>> -- Alexander J. Vincent, June 30, 2001
>> _______________________________________________
>> es-discuss mailing list
>> [email protected]
>> https://mail.mozilla.org/listinfo/es-discuss
>>
>>
>> --
>> Dr. Axel Rauschmayer
>> [email protected]
>> rauschma.de
>>
>>
>>
>>
>> _______________________________________________
>> es-discuss mailing list
>> [email protected]
>> https://mail.mozilla.org/listinfo/es-discuss
>>
>>
>
> _______________________________________________
> es-discuss mailing list
> [email protected]
> https://mail.mozilla.org/listinfo/es-discuss
>
>
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