Smart UI in jQuery is an Ajax development framework based on JQuery, which realizes the separation of front and backend, function and data. The UI layer is all completed using [htm js json], and data is communicated with the server through a unified data interface. exchange.
The operating environment of this tutorial: windows7 system, jquery3.5.1 version. This method is suitable for all brands of computers.
JQuery Smart UI is an Ajax development framework based on JQuery, which realizes the separation of front and backend, function and data. The UI layer is all completed using htm js json, through a unified data interface and service end for data exchange.
It mainly consists of three parts:
1. A set of JQuery plug-ins for daily application (similar to JQuery UI, JQuery EasyUI), the core is based on template.js template plug-in, with Powerful customization capabilities.
#2. A set of front-end development framework (js, css) that meets various basic scenarios and has good encapsulation and scalability. The system automatically completes tedious operations such as dynamically creating pages, interacting with the background, and retrieving and assigning values.
3. Background data framework (.net) seamlessly integrated with Smart UI.
The framework of Smart UI mainly includes four parts: UI layer (Smart UI), data interface, business layer and data layer. Today I will mainly explain the UI layer. This part is different from the architecture of previous common frameworks in that it is a pure front-end development architecture, css html], css and js have detailed layering, not only in Smart UI, but also in other frameworks. It can be used as a reference, and I hope everyone can provide valuable suggestions.
Related free learning recommendations: JavaScript (video)
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实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

在jquery中,apply()方法用于改变this指向,使用另一个对象替换当前对象,是应用某一对象的一个方法,语法为“apply(thisobj,[argarray])”;参数argarray表示的是以数组的形式进行传递。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。


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