regExp.global

global属性表明正则表达式是否使用了 "g" 标志。global是一个正则表达式实例的只读属性。

| RegExp.prototype.global属性的属性特性 |

|:----|

| Writable | no |

| Enumerable | no |

| Configurable | yes |

描述

global 的值是布尔对象，如果使用了 "g" 标志，则返回true；否则返回 false。 "g" 标志意味着正则表达式应该测试字符串中所有可能的匹配。

你无法直接更改此属性。

var regex = new RegExp('foo', 'g'

console.log(regex.global // true

Specification	Status	Comment
ECMAScript 3rd Edition (ECMA-262)	Standard	Initial definition. Implemented in JavaScript 1.2. JavaScript 1.5: global is a property of a RegExp instance, not the RegExp object.
ECMAScript 5.1 (ECMA-262)The definition of 'RegExp.prototype.global' in that specification.	Standard
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'RegExp.prototype.global' in that specification.	Standard	global is now a prototype accessor property rather than an instance's own data property.
ECMAScript Latest Draft (ECMA-262)The definition of 'RegExp.prototype.global' in that specification.	Draft

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)
Prototype accessor property	(Yes)	?	38 (38)	?	?	?

Feature	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)
Prototype accessor property	?	?	?	38.0 (38)	?	?	?