Document.getElementsByName()

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句法
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getElementsByName() 方法在 Document 对象返回 NodeList Collection of elements with a given 名称 in the document.

句法

var elements = document.getElementsByName(name);

元素 是实时 NodeList Collection, meaning it automatically updates as new elements with the same 名称 are added to/removed from the document.
名称 is the value of the 名称 attribute of the element(s).

范例

<!DOCTYPE html>
<html lang="en">
<title>Example: using document.getElementsByName</title>
<input type="hidden" name="up">
<input type="hidden" name="down">
<script>
  var up_names = document.getElementsByName("up");
  console.log(up_names[0].tagName); // displays "INPUT"
</script>
</html>

注意事项

名称 attribute can only be applied in (X)HTML documents.

返回的 NodeList Collection contains all elements with the given 名称 ，譬如 <meta> , <object> , and even elements which do not support the 名称 attribute at all.

getElementsByName method works differently in IE10 and below. There, getElementsByName() also returns elements that have an id 属性 with the specified value. Be careful not to use the same string as both a 名称 和 id .

getElementsByName method works differently in IE. There, getElementsByName() does not return all elements which may not have a 名称 attribute (such as <span> ).

Both IE and Edge return an HTMLCollection , not a NodeList

规范

规范	状态	注释
HTML 实时标准 The definition of 'Document.getElementsByName()' in that specification.	实时标准
DOM (文档对象模型) 2 级 HTML 规范 The definition of 'Document.getElementsByName()' in that specification.	过时	初始定义

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`getElementsByName`	Chrome 1	Edge 12 12 Before Edge 79, this method returns an `HTMLCollection` , not a `NodeList` .	Firefox 1	IE 5 5 返回 `HTMLCollection` , not a `NodeList`	Opera 5	Safari 1	WebView Android 1	Chrome Android 18	Firefox Android 4	Opera Android 10.1	Safari iOS 1	Samsung Internet Android 1.0

图例

完整支持

另请参阅

document.getElementById() to return a reference to an element by its unique id
document.getElementsByTagName() to return references to elements with the same tag name
document.querySelector() to return references to elements via CSS selectors like 'div.myclass'

元数据

最后修改： Oct 17, 2019

在此页

句法

范例

注意事项

规范

浏览器兼容性

图例

另请参阅

相关话题