Method exec

src/commands/command_manager.js:34–56

* * @param {string | string[] | import("../../ace-internal").Ace.Command} command * @param {Editor} editor * @param {any} args * @returns {boolean}

(command, editor, args)

     * @returns {boolean}
     */
    exec(command, editor, args) {
        if (Array.isArray(command)) {
            for (var i = command.length; i--; ) {
                if (this.exec(command[i], editor, args)) return true;
            }
            return false;
        }
        
        if (typeof command === "string")
            command = this.commands[command];

        var e = {editor: editor, command: command, args: args};
        
        if (!this.canExecute(command, editor)) {
            this._signal("commandUnavailable", e);
            return false; 
        }
        
        e.returnValue = this._emit("exec", e);
        this._signal("afterExec", e);

        return e.returnValue === false ? false : true;
    }

    /**
     *