findIndex responsibly

by Town December 13, 2017

JavaScript

const things = [1,2,3,4,5];
let thingDex = things.findIndex(thing => thing === 6);
console.log(things.slice());
console.log(thingDex);
things.splice(thingDex, 1);
console.log(things.slice());
console.log("oh noes! We lost a thing!");

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findIndex responsibly

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

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Private collections and fiddles

Console