JavaScript RegExp source attribute

Definition and usage

source The property returns the text of the RegExp pattern.

description

RegExp object properties source It is a read-only string. It stores the text of the RegExp pattern. This text does not include the delimiters used by the literal of the regular expression, nor does it include the flags g, i, m.

example

let text = "Visit CodeW3C.com";
let pattern = /W3S/g;
let result = pattern.source;

try it yourself

syntax

regexp.source

return value

type description
string RegExp pattern text.

browser supports

source 是 ECMAScript1 (ES1) 特性。

所有浏览器都完全支持 ES1 (JavaScript 1997)：

Chrome IE Edge Firefox Safari Opera
支持 支持 支持 支持 支持 支持