FAILED to open .js extension files in Eclipse?

问题

I am devloping phonegap application using eclipse whenever i am trying to open .js extension files it by default open "Alert" of Adobe DreamViewer and my adobe has been expired so its show me "Adobe Alert do u want to buy ? " Moreover its not opening any .js file and when i am trying to open file by rightclick---->open with ----->TextEditor
then there is only code appearing in editor no "Code Completion " appears no error indication ....nothing how can i resolve this issue ?

here is the result after following answer..... when trying to open file i am getting "The Class File Viewer cannot handle the given input." in Editor .Snapshots added when opening file then:

回答1:

You need to install javascript editor plugin for eclipse. Follow the link below to do it:

JavaScript Editor Plugin for Eclipse

来源：https://stackoverflow.com/questions/21926041/failed-to-open-js-extension-files-in-eclipse