JSLite - Plug-in writing

If you have any questions, you are welcome to communicate in these places, and you are welcome to join the JSLite.io organization team for joint development!

$.extend

Expand the properties of the target object through the source object, extending the JSLite element set to provide new methods (usually used to make Plugins)

$.extend({
    min: function(a, b) { return a < b ? a : b; },
    max: function(a, b) { return a > b ? a : b; }
});
$.min(2,3);    //⇒ 2
$.max(4,5);    //⇒ 5
// 在$上扩展了几个方法  
//调用方法  $.min(2,3);   //⇒ 2
//调用方法  $.max(4,5);   //⇒ 5

$.fn.extend

Extends the JSLite element set to provide new methods (commonly used to make plugins).

$.fn.extend({   //增加两个插件方法。
    check: function() {
        return this.each(function() { this.checked = true; });
    },
    uncheck: function() {
        return this.each(function() { this.checked = false; });
    }
});
$("input[type=checkbox]").check();  //选中
$("input[type=radio]").uncheck();   //取消选中

$.error

The error event occurs when an element encounters an error (not loaded correctly).

$.error("2222")
//⇒ 输出错误 Uncaught 2222