JSFiddle - React, Tailwind, and code Playground

by jfriend00

JavaScript

console.log([1,2,3,4,5,6,7].splice(1,0,'foo'));
console.log(new Array(1,2,3,4,5,6,7).splice(1,0,'foo'));
var a = '1234567'.split('');
console.log(a.splice(1,0,'foo'));
console.log(a);  // see the modified source array here