web api instance method
Document: queryCommandEnabled() method
[!NOTE] Although the
execCommand()method is deprecated, if you do decide to use it for reasons given on that page, you should consider checking the command’s availability usingqueryCommandEnabled()to ensure compatibility.
The Document.queryCommandEnabled() method reports whether
or not the specified editor command is enabled by the browser.
Syntax
queryCommandEnabled(command)
Parameters
command- : The command for which to determine support.
Return value
Returns a boolean value 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
const flg = document.queryCommandEnabled("SelectAll");
if (flg) {
document.execCommand("SelectAll", false, null); // command is enabled, run it
}
Specifications
This feature is not part of any current specification. It is no longer on track to become a standard. There is an unofficial W3C execCommand spec draft.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.