Regular expression for string in nodejs

Question

My string is : BETA-GE=a034-56aw-y567-54er; beta=/;

I would like to retrieve the string "a034-56aw-y567-54er" from the above string in nodejs.

The code I have written currently is:

var xs = "BETA-GE=a034-56aw-y567-54er; beta=/;";
var regex = /^BETA-GE=[a-zA-Z0-9-]*[;]*./;
let match = regex.exec(xs);
console.log(match[0]);

The result displays BETA-GE=a034-56aw-y567-54er;

Alon Adler · Accepted Answer · 2020-03-31 15:48:06Z

3

Surround the part you want with a capture group and access it:

var xs = "BETA-GE=a034-56aw-y567-54er; beta=/;";
var regex = /^BETA-GE=([a-zA-Z0-9-]*)[;]*./;
let match = regex.exec(xs);
console.log(match[1]);

answered Mar 31, 2020 at 15:48

Alon Adler

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Comments

Krophil · Accepted Answer · 2020-03-31 15:51:58Z

0

You have just to create a group in your regexp and get the second match :

var xs = "BETA-GE=a034-56aw-y567-54er; beta=/;";
var regex = /^BETA-GE=([a-zA-Z0-9-]*)[;]*./;
let match = regex.exec(xs);
console.log(match[1]);

answered Mar 31, 2020 at 15:51

Krophil

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