Using Array from() Method or map() method, you can get Array from number in JavaScript. The JavaScript Array from() method returns an Array object from any object with a length property or an iterable object.
Array.from(object, mapFunction, thisValue)The map() method in JavaScript creates an array by calling a specific function on each element present in the parent array.
array.map(function(currentValue, index, arr), thisValue)
Array from number JavaScript
Simple example code.
Using Array.from() Method:
<!DOCTYPE html>
<html>
<body>
<script>
var num = 123456;
let myFunc = num => Number(num);
var intArr = Array.from(String(num), myFunc);
console.log(intArr);
</script>
</body>
</html>Output:
Using map() Method:
<script>
var num = 123456;
var myArr = String(num).split("").map((num)=>{
return Number(num)
})
console.log(myArr)// [ 1, 2, 3, 4, 5, 6 ]
</script>Take an array of numbers and return an array with numbers doubled using the array map method.
const numbers = [1, 2, 3];
function doubleNumbers(numbers) {
return numbers.map(x => x * 2);
}
console.log(doubleNumbers(numbers));Output: [ 2, 4, 6 ]
Create an array sequence from 1 to N in a single line in JavaScript
const N = 5;
const arr = Array.from({length: N}, (_, index) => index + 1);
console.log(arr);// [ 1, 2, 3, 4, 5 ]Do comment if you have any doubts or suggestions on this Js Array code.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version