RunKit + 
Try any Node.js package right in your browser
This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including postcode. Try it out:
const Postcode = require("postcode");
const postcode = new Postcode("ec1v9lb");
postcode.valid();
postcode.normalise();
postcode.outcode();
postcode.incode();
postcode.area();
postcode.district();
postcode.subDistrict();
postcode.sector();
postcode.unit();
- all documents on RunKit are public
require()any package directly from npm- use arrow functions, classes, template strings, and most of ES6
awaitany promise instead of using callbacks (example)- create your own embedded node.js snippets
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