Sublime http://www.sublimetext.com/3 has many features that will help you check your javascript syntax here are some we use the most
- command D to rename variables
- Jshint (control J after you installed the plugin)
- format (command shift p, format after you installed the plugin)
- command / to toggle comments on a line
- command control and arrows to move lines up and down
This issue is to find some youtube videos for sublime for interns