NodeList.keys() - Web APIs 编辑

The NodeList.keys() method returns an iterator allowing to go through all keys contained in this object. The keys are unsigned integer.

Syntax

nodeList.keys();

Return value

Returns an iterator.

Example

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;

// Using for..of
for(var key of list.keys()) {
   console.log(key);
}

The result is:

0
1
2

Browser compatibility

BCD tables only load in the browser

See also

• Node
• NodeList