Document.queryCommandState() - Web API 接口参考 编辑

语法

Object.queryCommandState(String command)

描述

返回 指定命令 在对象内的状态码（1表示指定命令在对象内已执行；0表示指定命令在对象内未执行，处于可执行状态；-1表示指定命令在对象内处于不可用状态）

规范

Specification	Status	Comment
HTML Editing APIs execCommand	Editor's Draft	Initial definition

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari
Basic support	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)	(Yes)

Feature	Android	Chrome for Android	Edge	Firefox Mobile (Gecko)	IE Mobile	Opera Mobile	Safari Mobile
Basic support	?	?	(Yes)	?	?	?	?

参见

• document.contentEditable
• document.designMode
• Rich-Text Editing in Mozilla
• Browser bugs related to queryCommandState(): Scribe's "Browser Inconsistencies" documentation