javascript ascending and descending
// ascending and discending for number
const arr1 = [21, 2100, 2, 35000];
const arr2 = [21, 2100, 2, 35000];
let ascN = arr1.sort((f, s) => f - s);
let dscN = arr2.sort((f, s) => s - f);
// ascending and discending for string
const arr3 = ['21', '2100', '2', '35000'];
const arr4 = ['21', '2100', '2', '35000'];
let ascS = arr3.sort((f, s) => f.length - s.length);
let dscS = arr4.sort((f, s) => s.length - f.length);how to sort an array in javascript
you can sort array in different ways:
first....by using the sort method
ex: let arr = ["a", "d", "b", "c", "f"]
let res = arr.sort()
NOTE: this method is not ideal
second...... by using the sort function
ex: let arr = [1, 10, 11, 30, 100, 50, 45]
let res = arr.sort((a, b)=> a - b ).....this sorts in ascending order
let res = arr.sort((a, b)=> b - a ) ...this sorts in descending order
NOTE: we can also user different algorithms to sort an array. example: bubble sort,
quick sort, merge sort etc.
answer by EZIOGOR CLEVERCopyright © 2021 Codeinu
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