What's it?

The importJS is the js library which is used to import remote js files or scripts more simply and efficiently. In some single page of h5, we often use <script> label to load the remote js, or use import or npm to load the remote js module, it's work, but they are static and you cannot control the imported-js in the running-time. If you want to test some module in the running-time, it's cannot be work. So you have to use another test library,and reload or import it, then run it again. And the other problem is that when you load an js-script, but the script just for a little bit of code to run. When it run over, the import-js resource always be there.In some complex enviroment, it shall cause an unexpected error,becuase the other variable is polluted by the import-js resource.So the best way to deal with this situation is that we remove it in time when we run over the code which depend it. For solving these problems, i am developing it. The importJS can remove the wasted-jsresource dynamically.And it support async mode,sync mode and mixed mode. When you use sync mode , the remote resource must be allowed across-origin. When you use mixed mode, the priority list of import-mode is that sync > async. But if the application occur some error , the async's code also can be runned except the import js-resource cannot be loaded. The importJS also can help you remove the remote-jssource which is import repeatedly.So it's help you save the network resource,improve your web application's performance. Well, let's go for it!