标签:for class log dex 遍历 script pre value val
keys()是对键名的遍历、
values()是对键值的遍历
entries()是对键值对的遍历。
for (let index of [‘a‘, ‘b‘].keys()) {
console.log(index);
}
// 0
// 1
for (let elem of [‘a‘, ‘b‘].values()) {
console.log(elem);
}
// ‘a‘
// ‘b‘
for (let [index, elem] of [‘a‘, ‘b‘].entries()) {
console.log(index, elem);
}
// 0 "a"
// 1 "b"
标签:for class log dex 遍历 script pre value val
原文地址:https://www.cnblogs.com/blogZhao/p/12560635.html