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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 @extra-object/count-as. Try it out:
const object = require('extra-object');
var x = {a: 1, b: 1, c: 2, d: 2, e: 4};
object.countAs(x);
var x = {a: 1, b: 2, c: 3, d: 4};
object.countAs(x, v => v % 2);
- 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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