ES 2016
Also known as ECMAScript 2016 or ES7
Array.prototype
Before
let chars = ['a','b','c','d']
if (chars.indexOf('b') !== -1) {}
Now
if (chars.includes('b') ) {}
//returns the correct value when searching for NaN
Exponentiation Operator
The exponentiation operator (**) raises the first operand to the power of the second operand.
let base = 3
let exponent = 4
let result = base ** exponent
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