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Web design tutorial

The difference between AJAX submission and traditional form submission

The AJAX submission is to submit the request through JS. The request and response are handled by the JS engine. The page will not be refreshed. The user does not feel that the browser actually sends a request. For example, we hope that the webpage always

2025-03-11
Refresh several methods of the page (JS, ASP.NET)

Several ways to refresh the page of JavaScript: 1. History.go (0) 2. Location.Reload () 3. Location = local 4. Location.assign (local) 5.

2025-03-11
Implement checkbox selection, unselect, and cancel JavaScript small script exceptions

Today, when I realized the checkbox selection, unselect, and cancel the JavaScript small script, there was always a problem that the page was refreshed instantly after clicking, and all the selected checkboxes were cancelled. I debugged for a long time an

2025-03-11
HTML based on a screenshot of Canvas implementation

I wrote it before I saw a sharing on everyone, explaining the JS -based screenshot solution. I do n’t remember it in detail. I just remember that it looks like Canvas? So this time I plan to write a idea of sharing with everyone. This is just a very sim

2025-03-11
Parsing the ambiguity of square brackets "[]" in Javascript

There are four semantics of JavaScript square brackets 1. The copy code for declaring an array is as follows: var ary = []; // Declare an empty array var ary = [1,3]; // Declare an array and assign an initial value at the same time. 2 , copy the code to g

2025-03-11
Sample after js timed calling method successfully and stop calling

The code copy is as follows:<pre name="code"><pre name="code">

2025-03-11
Solution to the timeout of Ajax request when the data volume is large

Recently, I am using EXtjs to make a project. When the loading data is particularly large, the loading timeout will occur. Check it under FB. It turns out that the ext default ajax request is 30 seconds. I searched the following solutions online for refer

2025-03-11
js pops up a div and displays the mask layer

Copy code code as follows: // ------------------------------------------------------------------------------------------ PopDIVID: The ID of the decoile layer of the decadrous division //dragdivid: used to drag the id of the div // isshowmask: whether to

2025-03-11
Detailed explanation of the access method of JavaScript attributes

The access method of the JavaScript class attribute copy code code is as follows: VAR FISH = {Head: 1, TAIL: 1, Feature: {Speak: False, SWIM: TRUE}}

2025-03-11
JavaScript according to position and computing symbol (& amp;) use introduction

Copy code code is as follows: Result = [Indica 1] & [Interal 1] & Each bit of each bit of two 32 -bit expressions is executed by "and" and the operation. If both bits are 1, the result is 1. Otherwise, the result is 0. The example of the

2025-03-11
JS about accurate calculation and value formatting, and direct js file

Copy code code as follows: (Function () {var call = { /* function, add method to obtain accurate adding results: JavaScript's additional results will be errors. . This function returns a more accurate method of addition.

2025-03-11
JavaScript number and string conversion example

1. Convert a number to a string a. To convert a number to a string, just add an empty string to it: The code copy is as follows: var n = 100; var n_as_string = n + ""; b. To convert numbers to strings more explicitly, use Str

2025-03-11
HTML5 input new type attribute color color picker example code

Definition and Usage The type attribute specifies the type of the input element. Note: This attribute is not required, but we think you should always use it.<!DOCTYPE html><html lang=en><head><meta charset=UTF-8>

2025-03-11
JS determines that Null is empty and string is empty abbreviation method

Recently, I suddenly found that the JavaScript code I wrote was quite bloated, so I started to study the abbreviation method of JavaScript. This way, our JavaScript code can look refreshing, and also improve our technology. So how to abbreviate it as null

2025-03-11
Sample code for browser screenshot using html2canvas

Using html2canvas to implement browser screenshots must be implemented in a server environment. Function html2canvas can take screenshots on the browser side through pure JS, but the accuracy of the screenshots needs to be improved, and some css cannot be

2025-03-11

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