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ES7
- ECMAScript2016
JavaScript Array.prototype.includes
["Banana", "Orange", "Apple", "Mango"].includes("Mango"); // is true
Exponentiation Operator
let z = 5 ** 2; // 25
let y = Math.pow(5, 2); // 25
Exponentiation Assignment
let z = 5;
z **= 2; // 25
