To set up Eclipse to run JavaScript files:

1. In Eclipse, got to Run > External Tools > External Tool Configurations




2. Double click on Program to open a new configuration and name your new configuration (ex. Node_Config)




3. Figure out where you have node.js installed. Paste the results in the 'Location' box in Eclipse. (If you haven't installed node, do so here)

   
   
   
   
   
   1. Mac: in the command line, run which node.
   
   
   2. Windows: in the command line, run where node, or see this for more/different windows advice
   
   



4. Fill in the following:

   
   
   
   
   
   1. Working Directory: ${container_loc}
   
   
   2. Arguments: ${resource_name}
   
   



5. Click apply, and then close.

Now, in the main Eclipse screen, find the play button with a red toolbox (next to the regular play button). When you have a js file open that you want to run, click this and it will be just like running it from your console using node.