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Web design tutorial

Bootstrap-based UI extension StyleBootstrap

StyleBootstrap is an open source UI framework based on Bootstrap. Currently, there are many extension plug-ins based on Bootstrap style, such as Bootswatch, BootMetro, etc. We have introduced these before. StyleBootstrap should be said to be for Boots

2025-07-05
Simple implementation chosen by the province and city (based on zepto.js)

The effects are as follows:<div><select id="cityParent"><option value="请选择省请选择省请选择省"> Please select a province</option></select>

2025-07-05
Detailed explanation of String string type in Javascript type system

JavaScript does not represent a single character, only a string String type. The character type is equivalent to a string containing only one character String String is the basic data type of JavaScript. At the same time, JavaScript also supports String o

2025-07-05
Comprehensive understanding of script tags in js

Introduce javascript files with script tags in the page (<script type="text/javascript" src="js文件地址"></script> ), when the browser renders the page, when reading script elements, the browser will not use HTML or

2025-07-05
Analysis and solution for the reason why the data sent by $http.post in AngularJs cannot be received

1. Problem: The backend cannot receive the data sent by $http.post in AngularJs, and it is always displayed as null sample code: $http.post(/admin/KeyValue/GetListByPage,{ pageindex: 1, pagesize: 8})

2025-07-05
How to convert the coordinate position of WeChat JS-SDK to Baidu map coordinates

During the development of WeChat JS-SDK, getLocation is used to obtain coordinate positions. How to directly apply the coordinates obtained by WeChat to Baidu map, display the following effect: Description: The red icon is the position converted from WeCh

2025-07-05
Implementation method of breakpoint continuous transmission of Html5 large files

This article mainly introduces the implementation method of breakpoint continuous transmission of Html 5 large files. Friends who need it can refer to the large file chunking. Generally, commonly used web servers have size restrictions on submitting data

2025-07-05
Detailed explanation of commonly used functions of prototype.js

Example of function name explanation Element.toggle Alternately hide or display Element.toggle(''div1'',''div2'') Element.hide

2025-07-05
Bootstrap pops up the login box instance code with legality check [Recommended]

Recently I made a project where project requirements involve access control. When accessing pages or functions that require login to be used, a login box will pop up: The effect is as follows: Figure 1 - When clicking on the user name, if not logged in, t

2025-07-05
Detailed explanation of JavaScript object types

JavaScrtip has six data types, a complex data type (reference type), namely the Object object type, and five simple data types (primitive types): Number, String, Boolean, Undefined and Null. Among them, the most core type is the object type. at the same t

2025-07-05
AngularJS uses directives to enhance standard form element functionality

Angular can use instructions to seamlessly enhance the functionality of standard form elements. We will discuss its advantages, including: data binding, model attribute creation, verification form, feedback information after verification form, form instru

2025-07-05
Comprehensive parsing of match, replace, exec and other functions in JS strings and regular expressions

Regular expressions describe a pattern of string matching, which can be used to check whether a string contains a certain substring, replace the matching substring, or take out a substring that meets a certain condition from a certain string, etc. Because

2025-07-05
Javascript converts double-byte characters into single-byte characters and calculates length

Copy the code as follows: function(s){return Math.ceil(s.replace(/[/u4e00-/u9fa5]/g, 'xx').length / 2);} can also be used (/[^/x00-/xff]/g,'**'), this is used '*

2025-07-05
A brief discussion on JavaScript for loop closure

A netizen asked a question, as shown in the following html, why does each output be 5, instead of clicking on each p, you will alert the corresponding 1, 2, 3, 4, 5.<html ><head>

2025-07-05
Brief discussion on window.onbeforeunload() event calling ajax

There is often a need for this, that is, when leaving a certain web page, the user does not necessarily click to log out, which will cause the session to not be destroyed in time. In order to realize the automatic logout function when the user leaves the

2025-07-05

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