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html5 video playback

1. HTML5 technical advantage 1 About video without plug -in play, click to watch 2 cross -platform, upgrade, and maintain. The development cost is relatively lower than the native APP. Many of the 3 pairs of good support, support gestures, local storage a

2025-02-02
HTML5 web cache and application cache (cookie, session)

Before introducing HTML5 web caching, let’s get to know cookies and sessions: session: Since HTTP is stateless, who are you? What did you do? Sorry, the server doesn't know. So the session appears, which stores user information on the server for futur

2025-02-02
JavaScript implements a simple countdown pop-up window DEMO with pictures

I recently made a simple settings web page. Because I needed to restart the device function, I wanted to add a countdown pop-up interface to it. The initial idea was to customize an alert pop-up window, but I soon discovered that the alert would always st

2025-02-02
JS Remove the space instance trim () ltrim () rtrim ()

1. JS Remove the spaces of the string // to the left space; function ltrim (s) ... {Return s.Replace (/(^s*)/g, "");} // Go to the right space; (s) ... {Return s.Replace (/(s (s s s s s s

2025-02-02
Detailed explanation of the method of setting the expiration time of localStorage

We all know that localStorage is not actively deleted and will never be destroyed, so how to set the expiration time of localStorage? Let’s try it together today!<script type=text/javascript> //封装过期控制代码 functi

2025-02-02
JS retains the writing after the decimal point

As shown below: Copy code code is as follows: // Reserve the two -bit function disposenumber (value) {if (value == NULL || Value == "") {Return 0;} else if (Value.Tostricing (

2025-02-02
JS obtains two ways to select the selection label selection value

Copy code code as follows: var obj = document.GetelementByidx_x ("TestSelect"); // Positioning IDVAR Index = Obj.selectindEx; // Select index Var Text = Obj

2025-02-02
The importance of beginPath() and closePath() in canvas in HTML5

The function of beginPath is very simple, it is to start a new path, but it is very important in the process of using canvas drawing. Let's look at a small piece of code first: var ctx=document.getElementById(canvas).getContext(2d); ctx.

2025-02-02
HTML page source code layout introduction

Introduction of the HTML page source code layout is based on the screenshot of the Google homepage source code as an example: Introduction from top to bottom:<!DOCTYPE html> This label can inform the browser documents which HTML or XHTML specifications ar

2025-02-02
html5 understands head_ power node Java college finishing

The HEAD part of the HTML document usually includes the designated page title, which provides information about the page itself, loads the style table, and loads the JavaScript file (for performance considerations, most of the time is placed on the bottom

2025-02-02
JavaScript Customized Date Formatization Function Detailed Analysis

One of our more common practices for JavaScript expansion is the expansion of Date.prototype. Because we know that the Date class only provides several methods for obtaining date elements, such as getdate (), getminute () ... but no one convert to the for

2025-02-02
Example of the role of JS script defer

Copy code code as follows:<script src="../cgi-bin/delscript.js" defer></script> The DEFER role is that the document is loaded before executing the script, so that the problem that can not be avoided cannot be found --- Some problems

2025-02-02
Implementation of HTML5 responsive (adaptive) web design

This article introduces the implementation of HTML5 responsive (adaptive) web design and shares it with everyone. The details are as follows: Step 1: Add a line of viewport meta tags to the head of the web page code.

2025-02-02
js prevents child elements from responding to the onmouseout event of the parent element.

Copy the code as follows: $(".target-menu").mouseout(function(e){ evt = window.event || e; var obj = evt.toElement || evt.relatedTarget;

2025-02-02
JS DATE objects and obtaining the system for detailed explanation of the current time

I. DATE objects are one object every day. Let ’s take a look at the DATE object today. Compared with time, everyone must be familiar with it. It should encounter such time special effects in many places in the website. Nutraitter knows new, today we will

2025-02-02

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