How to Create a Javascript Console in Sublime Text

JSC is a command-line Javascript runner, cooked directly into Mac OS X. Because most Macs already contains everything you need to run the script, creating the build system in Sublime Text is incredibly easy. (If you have a Windows computer, see the directions for Node.js below.)

Creating The Build System

1. 1
   Launch Sublime Text.
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2. 
   2
   Go to "Tools > Build System > New Build System" in the top bar.
3. 
   3
   Paste this code into the resulting new tab that Sublime Text opened, replacing anything else in it:

   {
   "cmd": ["/System/Library/Frameworks/JavaScriptCore.framework/Versions/A/Resources/jsc", "$file"],
   "selector": "source.js"
   }
   
4. 
   4
   Save the file as "JSC.sublime-build" in the default "user" folder. Now you have created your build system!
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Usage

1. 1
   Open the Javascript file that you want to run in Sublime Text.
2. 2
   Use debug() instead of console.log() in your script.
3. 
   3
   Go to "Tools > Build System" in the top bar and select "JSC". This is the build system that you just created.
4. 
   4
   Build the Javascript file, using either the shortcut (Ctrl+B for Windows, and ⌘ Command+B for Mac), or by choosing "Build" from the "Tools" menu. A console will now appear in a pane at the bottom of the window, showing the results of your script!
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Node.js (Node) is a platform built to allow Javascript to run on a server. However, it can also be installed on your local computer, providing a relatively simple way to run Javascript and get the results without using a browser.

1. 1
   Download the Node installer from the project's homepage and run it. Simply use the default settings.
2. 
   2
   Go to "Tools > Build System > New Build System" in the top bar.
3. 
   3
   Paste this code into the resulting new tab that Sublime Text opened, replacing anything else in it:

   {
   "cmd": ["node", "$file"],
   "selector": "source.js"
   }
   

   • If you receive a "[Errno 2]" error, then you'll need to change "node" in the code above to the path where node is located. To do this, open terminal and run "which node". This will print out the path to the node binary.
4. 
   4
   Save the file as "node.sublime-build" in the default "user" folder. Now you have created your build system!
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Usage

1. 1
   Open the Javascript file that you want to run in Sublime Text.
2. 
   2
   Go to "Tools > Build System" in the top bar and select "node". This is the build system that you just created.
3. 
   3
   Build the Javascript file, using either the build shortcut (Ctrl+B for Windows, and ⌘ Command+B for Mac), or by choosing "Build" from the "Tools" menu. A console will now appear in a pane at the bottom of the window, showing the results of your script!
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