CODEWITHSUNDEEP
javascriptregex
Chron Bag
Chron Bag

Reputation: 587

How to get all RegEx capture groups as a single string?

I'm currently on https://regex101.com/ and have the following inputted (with global flag):

REGULAR EXPRESSION: ([A-Z])
TEST STRING: ABCdefGHI

On the right in Match Information the following string is in Group 1: ABCGHI

I'm trying to replicate this in JavaScript and I'm having trouble:

var myString = "ABCdefGHI";
var myRegexp = /([A-Z])/g;
var match = myRegexp.exec(myString);
console.log(match[1]);

The above just returns A. Desired result: ABCGHI

I've looked around a bit and there seems to be a way to do it by looping through the resulting RegEx grouping array, pushing all elements, and then doing a string join. I'm wondering if that is completely necessary or if I'm missing something obvious.

Upvotes: 1

Views: 123

Answers (1)

anubhava
anubhava

Reputation: 784958

You can use array.join('') where array is return value of string.match(re):

var myString = "ABCdefGHI";
var myRegexp = /([A-Z])/g;

var result = myString.match(myRegexp).join('');

console.log(result);
//=>"ABCGHI"

Or else if you're allowed to change regex then use negation:

var repl = myString.replace(/[^A-Z]+/, '')
//=> "ABCGHI"

Upvotes: 3

Related Questions