As you learned in Chapter 1, JavaScript – A Quick Overview, the JavaScript language has new functionalities according to the ECMAScript 2015 (ES6 or ES2015) and newer specifications (2015+).
The following is a list of the new methods added in ES2015 and ES2016:
Method |
Description |
@@iterator |
Returns an iterator object that contains the key/value pairs of the array that can be synchronously called to retrieve key/value of the array elements. |
copyWithin |
Copies a sequence of values of the array into the position of a start index. |
entries |
Returns @@iterator, which contains key/value pairs. |
includes |
Returns true if an element is found in the array, and false otherwise. This ... |