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 ts-is-present. Try it out:
var { isPresent, isDefined, isFilled } = require("ts-is-present")
var exampleData = [
'alpha',
undefined,
'beta',
null,
'gamma'
];
console.log(`isPresent: ${exampleData.filter(isPresent)}`);
console.log(`isDefined: ${exampleData.filter(isDefined)}`);
console.log(`isFilled: ${exampleData.filter(isFilled)}`);
- 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
This service is provided by RunKit and is not affiliated with npm, Inc or the package authors.