src/aria/utils/Callback.js
function (evt) {
            var args = (this._apply === true && ariaUtilsType.isArray(this._args)) ? this._args.slice() : [this._args];
            var resIndex = (this._resIndex === undefined) ? 0 : this._resIndex;

            if (resIndex > -1) {
                args.splice(resIndex, 0, evt);
            }

            return this._function.apply(this._scope, args);
        }
function (evt) {
            var args = (this._apply === true && ariaUtilsType.isArray(this._args)) ? this._args.slice() : [this._args];
            var resIndex = (this._resIndex === undefined) ? 0 : this._resIndex;

            if (resIndex > -1) {
                args.splice(resIndex, 0, evt);
            }

            return this._function.apply(this._scope, args);
        }
function ( evt ) { var args = ( this . _apply === true && ariaUtilsType . isArray ( this . _args ) ) ? this . _args . slice ( ) : [ this . _args ] ; var resIndex = ( this . _resIndex === undefined ) ? 0 : this . _resIndex ; if ( resIndex > - 1 ) { args . splice ( resIndex , 0 , evt ) ; } return this . _function . apply ( this . _scope , args ) ; }
Execute the callback. It is equivalent to Callback.apply
@param {Object} event
Execute the callback . It is equivalent to Callback . apply