REPL8
Create your REPL by slotting REPL files and functionality into your import folder.
Installation
Firstly install the module via npm:
npm install repl8
Then require it into your application:
var repl8 = require('repl8');
We simply call the .start
function and pass it in an options object:
repl8.start({
src: __dirname + '/import', // This is required to tell repl8 where to load in our logic
ignoreUndefined: true,
prompt: 'repl8> '
});
The options object takes the same options as the original nodejs .repl function, with the addition of the src
option which points to where we will import our REPL commands.
http://nodejs.org/api/repl.html#repl_repl_start_options
Writing Commands
Create a file in your import
folder with the name of your command. In this example, we will create one called loop.js
This will immediately give our repl the command loop
.
Now inside loop.js
, lets make give it some functionality.
module.exports = function (max) {
for (i = 0; i < max; i++)
{
console.log("woo " + i);
}
}
Now restart our REPL and call our new loop
function:
repl8> loop(3)
woo 0
woo 1
woo 2