javascript match() 不带斜线

Question

I found this code:

var k= 'test';

var m = document.cookie.match(k+'=([^;]*)'); 

and I'm trying to get which cookies will be read. Normally there is a leading slash in the regex like: x.match (/\d+/g); but not here, so my question is how has the cookie to look like?

Answer 1

See the documentation on MDN :

If regexp is a non-RegExp object, it is implicitly converted to a RegExp by using new RegExp(regexp).