Start up script for node.js repl

Question

Is there a way configure node.js\'s repl? I want to require jquery and underscore automatically whenever the repl starts. Is there a file (noderc?) that node.js loads when i

Answer 1

Feb 2017 - whilst I agree with the accepted answer, wished to add a little more commentary here.

Like to setup as follows (from home directory on my Mac)

.node ├── node_modules │   ├── lodash │   └── ramda ├── package.json └── repl.js

Then repl.js may look like as follows:

const repl = require('repl');

let r = repl.start({
  ignoreUndefined: true,
  replMode: repl.REPL_MODE_STRICT
});

r.context.lodash = require('lodash');
r.context.R = require('ramda');
// add your dependencies here as you wish..

And finally, put an alias into your .bashrc or .zshrc file etc (depending on your shell prefs) - something like:

alias noder='node ~/.node/repl.js'

Now, to use this configuration, you just have to type noder from the command line. Above, I also specified that I'd always like to be in strict mode, and do not want undefined printed to the console for declarations etc.

For up-to-date information on repl and in particular repl.start options see here