CODEWITHSUNDEEP
javascriptregexstring
robskrob
robskrob

Reputation: 2898

How to retrieve string contents within a multi line comment in JavaScript

I would like to get the string contents within a multi line comment using JavaScript:

"/*
test
test
test
*/"

Given the above string, I would like the contents, test test test.

I've searched SO and cannot find a suitable answer. Does anyone know how to get all of the contents of a string within a multi line comment?

Upvotes: 0

Views: 58

Answers (2)

Giacomo Cosimato
Giacomo Cosimato

Reputation: 635

this should match multiline comments

var str = `/*
test
test
test
*/`

console.log(str.match(/\/\*([^]+)\*\//)[1]);

Upvotes: 0

dreamlab
dreamlab

Reputation: 3361

you can use a regular expression to find and match the contents

/\/\*([\s\S]*?)\*\//

the expressions will try to close on the first */. be aware that if comments are closed in comments, this might be different from how parsers handle this. in that case try fiddling with the lazy modifier (?).

as js:

var str = "/*\ntest\ntest\ntest\n*/"

var match = str.match(/\/\*([\s\S]*?)\*\//)

if ( match ) {
    var commentContent = match[1].trim()
}

Upvotes: 3

Related Questions