事件快捷方法的jQuery源代码的样式

Question

来自jQuery源代码：

jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
    "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
    "change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {

    // Handle event binding
    jQuery.fn[ name ] = function( data, fn ) {
        return arguments.length > 0 ?
            this.on( name, null, data, fn ) :
            this.trigger( name );
    };
});

是否有理由从一串事件类型开始，然后将该字符串拆分为数组，而不是使用数组开头：['blur', 'focus', 'focusin', 'focusout', 'load',...]？如果你要以字符串开头，为什么不使用单个字符串而不是连接三个字符串？