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 css-length. Try it out:
let CSSLength = require('css-length');
// play around! change the length, base, or formatter, and see the output
let length = new CSSLength('24px', {
base: 16,
formatter: (value, unit) => value + unit
});
console.log(`raw length: ${length.raw}`);
console.log(`orig unit: ${length.unit}`);
console.log(`orig value: ${length.value}`);
console.log(`base pixel size: ${length.$config.base}`);
console.log(`length.cm: ${length.cm}`);
console.log(`length.em: ${length.em}`);
console.log(`length.in: ${length.in}`);
console.log(`length.mm: ${length.mm}`);
console.log(`length.pc: ${length.pc}`);
console.log(`length.pct: ${length.pct}`);
console.log(`length.pt: ${length.pt}`);
console.log(`length.px: ${length.px}`);
console.log(`length.rem: ${length.rem}`);
- 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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