ECMAScript 2016
New Features in JavaScript 2016
Supported in all modern browsers since March 2017.
| Feature | Description | |
|---|---|---|
| ** | Raises the first operand to the power of the second | |
| **= | Raises the value of a variable to the power of the right operand | |
| Array includes() | Checks if an element is present in an array |
Browser Support
JavaScript 2016 is supported in all modern browsers since March 2017:
| Chrome 52 |
Edge 15 |
Firefox 52 |
Safari 10.1 |
Opera 39 |
| Jul 2016 | Apr 2017 | Mar 2017 | May 2017 | Aug 2016 |
ES 2016 is not supported in Internet Explorer.
Exponentiation Operator
The exponentiation operator (**) raises the first operand to the power of the second operand.
x ** y produces the same result as Math.pow(x, y):
Exponentiation Assignment
The exponentiation assignment operator (**=) raises the value of a variable to the power of the right operand.
JavaScript Array includes()
ECMAScript 2016 introduced Array.includes to arrays.
This allows us to check if an element is present in an array:
Example
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.includes("Mango");
Try it Yourself »
