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The Document.queryCommandEnabled() method reports whether or not the specified editor command is enabled by the browser.
Syntax
isEnabled = document.queryCommandEnabled(command);
-
Parameters
command- The command for which to determine support.
Return value
Returns a Boolean which is true if the command is enabled and false if the command isn't.
Notes
- For '
cut' and 'copy' commands the method only returns true when called from a user-initiated thread. - The
'paste'command returnfalsenot only if the feature is unavailable, but also if the script calling it has insufficient privileges to perform the action.
Example
var flg = document.queryCommandEnabled("SelectAll");
if(flg) {
document.execCommand("SelectAll", false, null); // command is enabled, run it
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Editing APIs The definition of 'querycommandenabled' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 17 | 9.0 (9.0)[1] | 4.0 | ? | ? |
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | ? | 9.0 (9.0)[1] | ? | ? | ? |
[1] Before Firefox 41, queryCommandEnabled() with arguments cut, copy or paste would throw errors unless the script had special privileges.