javascript scripting language of the main features:
1, explanatory: javascript is an interpreted language, the source code does not need to be compiled, interpreted directly run on the browser.
2, object-based: javascripth is an object-based language, can use their already created objects,
Methods many features from the scripting environment object interacts with the script.
3, event-driven: JavaScript can respond directly to the user or customer input, without going through a web service program.
His response to the user, is carried out in an event-driven manner, so-called event-driven, referring to the implementation of the action in the home for some operations generated, this action is called "event."
4, cross-platform: JavaScript depends on the browser itself, regardless of the operating environment. As long as the computer running the browser and JavaScript-enabled browser can execute properly.
5, security: JavaScript is a safe language. It does not allow access to local disk, data can not be stored on the server;
The network does not allow text to modify and delete, can only be achieved through a dynamic interactive information browsing or browser. Can effectively prevent data loss.