The Document.queryCommandEnabled() method reports whether or not the specified editor command is enabled by the browser.
isEnabled = document.queryCommandEnabled(command);
commandReturns a Boolean which is true if the command is enabled and false if the command isn't.
cut' and 'copy' commands the method only returns true when called from a user-initiated thread.'paste' command return false not only if the feature is unavailable, but also if the script calling it has insufficient privileges to perform the action.var flg = document.queryCommandEnabled("SelectAll");
if(flg) {
document.execCommand("SelectAll", false, null); // command is enabled, run it
}
| Specification | Status | Comment |
|---|---|---|
| HTML Editing APIs The definition of 'querycommandenabled' in that specification. | Editor's Draft | Initial definition |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 17 | Yes | 41
|
4 | ? | ? |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | Yes | Yes | Yes | 41
|
? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/API/document/queryCommandEnabled