@@iterator
属性的初始值和 values
属性的初始值是同一个函数。
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Syntax
mySet[Symbol.iterator]
Return value
返回 Set
iterator 函数,默认值是 values()
函数。
Examples
Using [@@iterator]()
const mySet = new Set();
mySet.add('0');
mySet.add(1);
mySet.add({});
const setIter = mySet[Symbol.iterator]();
console.log(setIter.next().value); // "0"
console.log(setIter.next().value); // 1
console.log(setIter.next().value); // Object
Using [@@iterator]() with for..of
const mySet = new Set();
mySet.add('0');
mySet.add(1);
mySet.add({});
for (const v of mySet) {
console.log(v);
}
Specifications
Specification |
---|
ECMAScript (ECMA-262) Set.prototype[@@iterator] |
Browser compatibility
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