Document.all - Web APIs 编辑

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This page is not complete.

Deprecated since HTML5

This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The Document interface's read-only all property returns an HTMLAllCollection rooted at the document node. In other words, it returns all of the document's elements, accessible by order (like an array) and by ID (like a regular object).

Syntax

var htmlAllCollection = document.all;

Value

An HTMLAllCollection which contains every element in the document.

Conversion to boolean

document.all is the only falsy object accessible to JavaScript, because it has the [[IsHTMLDDA]] internal slot. This was done because of compatibility with older versions of Internet Explorer. More information about this can be found in this answer from StackOverflow.

Specifications

Browser compatibility

BCD tables only load in the browser