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DOMTokenList.forEach()

この記事はまだボランティアによって 日本語 に翻訳されていません。ぜひ MDN に参加して翻訳を手伝ってください!

The forEach() method of the DOMTokenList interface calls the callback given in parameter once for each value pair in the list, in insertion order.

Syntax

tokenList.forEach(callback);
tokenList.forEach(callback, argument);

Parameters

callback
Function to execute for each element, eventually taking 4 arguments:
currentValue
The current element being processed in the array.
currentIndex
The index of the current element being processed in the array.
listObj
The array that forEach() is being applied to.
argument Optional
Value to use as this when executing callback.

Return value

undefined.

Exceptions

None.

Example

var node = document.createElement("div");
node.classList.add("class1");
node.classList.add("class2");
node.classList.add("class3");

node.classList.forEach( 
  function(value, key, listObj, argument) { 
    console.log(value + ' ' + key + "/" + this); 
  },
  "arg"
);

results in:

class1 0/arg
class2 0/arg
class3 0/arg

Specifications

Specification Status Comment
DOM
The definition of 'entries() (as iterable<Node>)' in that specification.
Living Standard Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) 50 (50) ? (Yes) ?
Feature Android Android Webview Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support (Yes) 50.0 (50) ? (Yes) ? (Yes)

See also

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