10 recommended articles about detection methods

HTML5 has developed to this day. Although it has not been popularized on a large scale, it is easily seen in our daily lives. HTML5 games, websites, and applications are also emerging in endlessly. As a front-end staff, you should also learn more about these APIs to lay the foundation for future applications. Below I will introduce to you the newly introduced APIs of HTML5, and attach the browser detection methods of each API. I mainly refer to the recent "html5 demystification" ” and “HTML5 Advanced Programming”. First, let’s introduce Modernizr. It is an open source Javascript library used to detect browser support for HTML5 and CSS3 features. The latest version is version 2.5.3 (download). The method of use is very simple. Introduce it into the page. JS, it will run automatically and create a Modernizr global object. It creates a corresponding Boolean type attribute for each detectable feature. We only need to call it, for example: if ( Modernizr.canvas ) { /

1. Details of HTML5 API browser support detection

##Introduction: Although HTML5 has not been widely popularized since its development, it is still easily seen in our daily lives. HTML5 games, websites, and applications are also emerging in endlessly. As a front-end staff, you should also learn more about these APIs to lay the foundation for future applications. Below I will introduce to you the newly introduced APIs of HTML5, and attach the browser detection methods of each API. I mainly refer to the recent "html5 demystification" ” and “HTML5 Advanced Programming”.

2. Summary of data type detection methods in JavaScript

##Introduction: This article lists the general Js type detection methods, which is a small piece of building the Js knowledge system. 1. There are 5 basic data types in Js: Undefined, Null, Boolean, String, Number (including NaN). NaN is not equal to any type of value, including NaN; isNaN is used to determine whether the value is NaN type. 2. Type judgment 1 .isFinite(number) Is it infinity? If it is not, it returns true. If it is NaN, or positive or negative infinity, or a non-numeric type, it returns false. 2. typeof operation..

##3.

JavaScript Object-Oriented - Rewriting of Prototype

##Introduction: In the previous article we introduced The memory model of the prototype was analyzed, and the status of the prototype at each stage was analyzed through 4 pictures. Below we will first introduce some commonly used prototype and object property detection methods. Let’s take the Person class from the previous article as an example. The code to create the Person class is as follows:

4. php error handling php string processing php image processing php big data processing

Introduction: php, processing: php error handling: In PHP, the default error handling is very simple. An error message is sent to the browser with the file name, line number, and a message describing the error. PHP Error Handling Error handling is an important part when creating scripts and web applications. If your code lacks error detection coding, the program will look unprofessional and open the door to security risks. This tutorial covers some of the most important error detection methods in PHP. We will explain to you different error handling methods: simple "die()" statement custom error and error triggering

5. PHP error handling function php404 error php internal Server error php error

Introduction: php, error: PHP error handling function: In PHP, the default error handling is very simple. An error message is sent to the browser with the file name, line number, and a message describing the error. PHP Error Handling Error handling is an important part when creating scripts and web applications. If your code lacks error detection coding, the program will look unprofessional and open the door to security risks. This tutorial covers some of the most important error detection methods in PHP. We'll walk you through different error handling methods: simple "die()" statements custom errors and error triggering

6. Work experience sharing php error handling experience sharing

Introduction: work experience sharing: work experience sharing php error handling experience sharing: this This tutorial introduces some of the most important error detection methods in PHP. We will walk you through different error handling methods: Simple "die()" statement Custom errors and error triggers Error reporting Basic error handling: using the die() function The first example shows a simple open text file Script: Copy the code as follows: If the file does not exist, you will get an error like this: Wa

7. PHP vs. Javascript Detecting code for Android devices via JavaScript or PHP

Introduction: PHP vs. Javascript:PHP vs. Javascript via JavaScript or PHP code to detect Android devices: With the return of Steve Jobs and the release of iPad 2, it seems that the topic of mobile development is becoming more and more popular. Here are some detection methods that can be used on Android, the biggest competitor of iOS. The JavaScript judgment method is the easiest way to search for Android words in the user agent string: Copy the code as follows: if(navigator.userAgent.match(/Android/i)) { // Do som

8. Detect the code of Android devices through JavaScript or PHP_PHP tutorial

##Introduction: Detect the code of Android devices through JavaScript or PHP. With the return of Steve Jobs and the release of iPad 2, it seems that the topic of mobile development is becoming more and more popular. Here are some detection methods that can be used on the Android system, the biggest competitor of iOS

9. php Error handling experience sharing_PHP tutorial

Introduction: PHP error handling experience sharing. This tutorial covers some of the most important error detection methods in PHP. We will explain different error handling methods to you: simple "die()" statement custom error and error trigger error

10. Please give me a php regular expression How to use, please help me from experts

Introduction: Please teach me how to use php regular expressions, please help me from experts, I want to make a method to detect friendly links, and check whether the other website has The friendly link of my website is to determine whether there is the address of my website; for example: the address of my website is www.csdn.net, but some websites sometimes add rel="nofollow" to the link, which is friendly. The link is meaningless; I haven't learned the regular expression well. How can I detect whether this has been added? There are several situations,

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