arguments[Symbol.iterator]()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
arguments
对象的 [Symbol.iterator]()
方法实现了可迭代协议并允许 arguments
对象被大多数期望可迭代对象的语法消费,例如展开语法和 for...of
循环。它返回一个数组迭代器对象,该对象会产生 arguments
对象中每个索引的值。
语法
js
arguments[Symbol.iterator]()
示例
使用 for...of 循环的迭代
js
function f() {
// 你的浏览器必须支持 for..of 循环
// 以及 for 循环中的 let 区域变量
for (let letter of arguments) {
console.log(letter);
}
}
f("w", "y", "k", "o", "p");
规范
Specification |
---|
ECMAScript® 2025 Language Specification # sec-createunmappedargumentsobject |
ECMAScript® 2025 Language Specification # sec-createmappedargumentsobject |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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[Symbol.iterator] |
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- Full support
- Full support
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