CODEWITHSUNDEEP
javascriptregexnode.js
Jo Colina
Jo Colina

Reputation: 1924

NodeJS RegExp: how to access full list of results

I'm having trouble accessing the full list of results when I .exec() a regular expression in Node. Here is my code:

var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
p.exec(t);
> [ 'aaa', 'aaa', index: 4, input: 'someaaa textaaa toaaa testaaa aaagainst' ]

I only get two results, no matter what. Is my error on the RegExp itself?

Any help will be appreciated!

Upvotes: 0

Views: 81

Answers (2)

Tushar
Tushar

Reputation: 87233

exec will only return the first matched result. To get all the results

  1. Use match

    var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
var matches = t.match(p);


var p = /(aaa)/g,
  t = "someaaa textaaa toaaa testaaa aaagainst";
var matches = t.match(p);

console.log(matches);

  1. Use while with exec

    while(match = p.exec(t)) console.log(match);


var p = /(aaa)/g,
  t = "someaaa textaaa toaaa testaaa aaagainst";

var matches = [];
while (match = p.exec(t)) {
  matches.push(match[0]);
}

console.log(matches);

Read: match Vs exec in JavaScript

Upvotes: 1

slomek
slomek

Reputation: 5136

var p = /(aaa)/g;
var t = "someaaa textaaa toaaa testaaa aaagainst";
t.match(p);

Upvotes: 1

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