NodeList.entries()
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.
该方法返回一个迭代协议,允许遍历此对象中包含的所有键/值。该值也是一个Node
对象。
语法
js
entries()
返回值
返回一个 iterator
.
示例
js
var node = document.createElement("div");
var kid1 = document.createElement("p");
var kid2 = document.createTextNode("hey");
var kid3 = document.createElement("span");
node.appendChild(kid1);
node.appendChild(kid2);
node.appendChild(kid3);
var list = node.childNodes;
// 使用 for..of 循环
for (var entry of list.entries()) {
console.log(entry);
}
结果如下:
Array [ 0, <p> ] Array [ 1, #text "hey" ] Array [ 2, <span> ]
浏览器兼容性
BCD tables only load in the browser