Syntax

queryCommandSupported(command)

Parameters

command

The command for which to determine support.

Return value

Returns a boolean value which is true if the command is supported and false if the command isn't.

Notes

The '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.

Examples

const flg = document.queryCommandSupported("SelectAll");

if (flg) {
  // Do something…
}

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

See also

• document.execCommand()
• document.queryCommandEnabled()