1 Install eclipse (this online a lot of yourself to find)
2 spket support JavaScript, XUL/XBL, Laszlo, SVG and other new products, with automatic code completion, syntax highlighting, content profiles and other features, can help developers create JavaScript programs efficiently, It can be run as a stand-alone desktop application or run as an Eclipse plug-in, and it can be downloaded from its official website http://www.spket.com/, which is mainly about how it is installed and used as an Eclipse plug-in.
3 The current latest version is Spket-1.6.22.zip, and the plugins directory and features directory are copied to the Eclipse installation directory respectively after decompression, Eclipse3.2 and the above version can use the plug-in, after the operation has completed the installation of the plug-in, launch Eclipse, you can now start to spket the necessary configuration.
4 When you start Eclipse, enter the window-> preferences option, locate the Spket menu, select the JavaScript profiles entry, and a list of JavaScript configurations appears, and there is no support for ExtJS by default. Next we will add the ExtJS library to the list.