code-editor.md

Run multi-line script

Press Ctrl+Enter, or click the "Run" button.

Sidenotes on autocompletion

1. Type hint annotation

   //<T>

   E.g. ''.│//<''>, [].│//<[]>, ect. (│ repr a caret)
2. Alphabetic completion
   For example, to get document.getElementById, you can of course enter document.id, but in addition, entering document.gid and document.gId will have a very different effect – only the latter will bring up the completion, and this is something the developer (me) stumbled upon rather than by design.

Special marks

• if (code.endsWith(...)):
  • ... = //.: Do not output the return value
  • ... = //..: Force output return value (To override the default behavior of not returning the value of the entire program if the program contains _console.log)
  • ... = //.JSON: JSON.stringify the return value

Exposed ad hoc functions

1. Database: getItem, setItem, delItem, clearDB
2. $load( scriptsURLs ): scriptsURLs can be a string or tuple or array.
   E.g. load some well-known frameworks:
   • VS Code (Monaco Editor):
     • $load.presets.VSCode()
     • $VSCode()
     • $VSCode(lang='julia')
   • TensorFlow.js: $load('@tensorflow/tfjs')
3. Other
   • $str: JSON.stringify indented with two spaces
   • $clear: Clear outputs

Custom tasks

• setItem('custom:run-after-loading', 'alert("Hi")')