5 JavaScript Concepts Everyone Should Learn! 🔥

Sep 10, 2023 · 2 min read · 73// Spread Operator and destructuring // arr = [1, 2, 4] // function avg(a, b, c) { // return a + b + c / 3 // } // let a = avg(...arr) // console.log(a) // to open array // let a = [4, 7,...arr,67] // to make copy of arr ------- // let a = [...arr]...