Basic concepts and advanced programming of jQuery_jquery

(1) jQuery is a JavaScript library created by American John Resig in 2006. It has developed from the initial version 1.0 to version 1.5.2, which was released in March 2011. As a JavaScript library, jQuery solves browser compatibility issues to a great extent and can run normally under IE 6.0, FF 2.0, Safari 3.0, Opera 9.0 and Chrome.

(2) Although jQuery is not the only JavaScript library, nor is it the earliest JavaScript library to appear, jQuery has the greatest influence. It continues to attract technology enthusiasts and experts from around the world to join its camp, and has almost Become the de facto standard in web development. Nowadays, even a JavaScript engineer who insists on not using jQuery must be able to understand jQuery code, otherwise he will not be able to communicate and cooperate with others conveniently. Therefore, jQuery has become a basic skill that front-end development practitioners must master.

(3) Logically speaking, jQuery is just a set of codes based on JavaScript. Its capabilities cannot exceed JavaScript, and even the implementation of certain functions still relies on JavaScript itself. Maybe many people take it for granted that learning to use JavaScript is enough, and jQuery should be left to those who are opportunistic. But it turns out that jQuery is not dispensable. Its emergence has completely liberated the creativity of developers, causing a large number of excellent network applications to emerge explosively, which is dizzying. It can be said to have created a prosperity that the original JavaScript could not achieve. situation.

(4) It is said that it is better to meet than to be famous. In order to experience the practical application of jQuery up close, readers can visit the following foreign websites. These dazzling websites hide a common feature, that is, they all use jQuery to create rich interactive elements and dynamic effects on the web page.

(5) jQuery is not only the best choice for beginners, it has been used in the world's largest organizations, enhancing interactivity for hundreds of millions of page visits every month. A large number of companies, including Amazon, IBM, Twitter, NBC, Best Buy, and Dell, use jQuery in their products.

(6) According to the development laws of the Web, there is no doubt that jQuery will evolve rapidly at the speed of the development of the Web. At least 3 major jQuery versions were released in 2011. The development community around jQuery continues to grow. Developers around the world have made important contributions to jQuery bug fixes, plug-in development, and related projects such as jQuery UI and QUnit. . The active jQuery technical community ensures that jQuery is a full-featured JavaScript library for any programmer who wants to engage in world-class JavaScript development.

(7) Summary: No matter which programming methodology or programming technology is used, for various web technologies such as Java/Spring, PHP, .NET, Ruby on Rails and Python/Django, jQuery is the best in the field of front-end development. Has outstanding features.