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 multi-integer-range. Try it out:
const { MultiRange, multirange } = require('multi-integer-range');
// Just a nice shorthand for you
const mr = value =>
multirange(value, { parseUnbounded: true, parseNegative: true });
// Basic manipulation
const range = mr('1-5, 9, 8')
.append(10)
.subtract(1);
console.log(range.toString());
// Iterator & array spread
console.log([...mr('(-103)-(-100), 101-103')]);
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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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