RegExp.prototype.global

概述

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 false
enumerable false
configurable false

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。

示例

例子：使用 global

var regex = new RegExp("foo", "g")

console.log(regex.global) // true

规范

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

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相关链接

  1. JavaScript 标准库
  2. RegExp
  3. 属性
    1. RegExp.$1-$9
    2. RegExp.input ($_)
    3. RegExp.lastMatch ($&)
    4. RegExp.lastParen ($+)
    5. RegExp.leftContext ($`)
    6. RegExp.prototype
    7. RegExp.prototype.dotAll
    8. RegExp.prototype.flags
    9. RegExp.prototype.global
    10. RegExp.prototype.ignoreCase
    11. RegExp.prototype.multiline
    12. RegExp.prototype.source
    13. RegExp.prototype.sticky
    14. RegExp.prototype.unicode
    15. RegExp.rightContext ($')
    16. get RegExp[@@species]
    17. RegExp.lastIndex
  4. 方法
    1. RegExp.prototype.compile()
    2. RegExp.prototype.exec()
    3. RegExp.prototype.test()
    4. RegExp.prototype.toSource()
    5. RegExp.prototype.toString()
    6. RegExp.prototype[@@matchAll]()
    7. RegExp.prototype[@@match]()
    8. RegExp.prototype[@@replace]()
    9. RegExp.prototype[@@search]()
    10. RegExp.prototype[@@split]()
  5. 继承
  6. Function
  7. 属性
    1. Function.arguments
    2. Function.arity
    3. Function.caller
    4. Function.displayName
    5. Function.length
    6. Function.prototype
    7. Function.name
  8. 方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.isGenerator()
    5. Function.prototype.toSource()
    6. Function.prototype.toString()
  9. Object
  10. 属性
    1. Object.prototype.__count__
    2. Object.prototype.__noSuchMethod__
    3. Object.prototype.__parent__
    4. Object.prototype.__proto__
    5. Object.prototype.constructor
  11. 方法
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toSource()
    10. Object.prototype.toString()
    11. Object.prototype.unwatch()
    12. Object.prototype.valueOf()
    13. Object.prototype.watch()
    14. Object.setPrototypeOf()