NEW: string equality comparisons in JavaScript
The application of the image object is quite extensive, it appears in the desktop programming very early, the application is more mature, like c++,java,c# etc. And in the Web programming this piece, appear much later, so that the current web development is difficult, of course, there are many technologies involved in web development reasons. In recent years, object-oriented gradually introduced in web development. Many large web sites are developed in PHP, PHP 4 is not perfect object-oriented, in PHP 5 improved. NET is also object-oriented, but execution efficiency is not as efficient as PHP.
JavaScript is also used quite a lot in web development, and most of the form validation is done with it. JavaScript as a scripting language, there is no special IDE development environment, there is no good debugging tools, development is rather slow, has not been the attention of people. It was not until the advent of Ajax that it brought life to it. It also gives people a real glimpse of the effect it brings with other technologies.
JavaScript is a part of the object that contains the image, but it is not popularized in the application.
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