JavaScript array.values() is an inbuilt method in JavaScript that is used to return a new array Iterator object that contains the values for each index in the array i.e., it prints all the elements of the array.
Example:
Input: A = ['a', 'b', 'c', 'd']
Output: a, b, c, d
Explanation:
Here as we see that input array contain some
elements and in output same elements get printed.
Array values() Method Syntax
arr.values();
Array values() Method Return values
It returns a new array iterator object i.e., elements of the given array.
Array values() Method Examples
Example 1: Printing values of array using array values() method
Here, we will print the values of an array using the array values() method.
JavaScript
// Input array contain some elementslet A = ['Ram', 'Z', 'k', 'geeksforgeeks'];// Here array.values() method is called.let iterator = A.values();// All the elements of the array the array // is being printed.console.log(iterator.next().value);console.log(iterator.next().value);console.log(iterator.next().value);console.log(iterator.next().value); |
Output
Ram Z k geeksforgeeks
Explanation:
- The
values()method is called on the arrayA. - An iterator object
iteratoris obtained from the array. - Each call to
iterator.next()returns an object with avalueproperty containing the next element in the array. - The
valueproperty of each iterator’s result object is logged to the console to print each element of the array sequentially.
Example 2: array values() method with for loop
Here, we will be using the array values() method with for loop to print the values of an array.
JavaScript
// Input array contain some elements.let array = ['a', 'gfg', 'c', 'n'];// Here array.values() method is called.let iterator = array.values();// Here all the elements of the array is being printed.for (let elements of iterator) { console.log(elements);} |
Output
a gfg c n
Explanation:
- The array
arraycontains elements'a','gfg','c', and'n'. - An iterator
iteratoris obtained from the array using thevalues()method. - The
for...ofloop iterates over the elements returned by the iterator. - Each element
elementsis logged to the console. - The output will be
'a','gfg','c', and'n'.
Example 3: Printing elements of array with holes using array values() method
Here, we have used value() method in Arrays with Holes.
Javascript
let array = ["A", "B", , "C", "D"];let iterator = array.values();for (let value of iterator) { console.log(value);} |
Output
A B undefined C D
Explanation:
- The array
arraycontains elements"A","B", an empty slot,"C", and"D". - An iterator
iteratoris obtained from the array using thevalues()method. - The
for...ofloop iterates over the elements returned by the iterator. - Each element
valueis logged to the console. - The output will be
"A","B","C", and"D". The empty slot will not produce any output.
We have a complete list of JavaScript Array methods, to check those please go through this Javascript Array Complete reference article.
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