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 array-any-index. Try it out:
var arrayGet = require('array-any-index');
var arr = [1, 2, 3, 4, 5];
var r1 = arrayGet(arr, -1); // result: 5
var r2 = arrayGet(arr, 0); // result: 1
var r3 = arrayGet(arr, 0.5); // result: 1.5
var r4 = arrayGet(['red', 'blue'], 0.5); // result: '#080080'
console.log(r1, r2, r3, r4);
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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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