how to sort an array by value in javascript
//ascending order
arr.sort(function(a, b){return a-b});
arr.sort((a, b) => a - b);
//descending order
arr.sort(function(a, b){return b - a});
arr.sort((a, b) => b - a);how to sort an array by value in javascript
//ascending order
arr.sort(function(a, b){return a-b});
arr.sort((a, b) => a - b);
//descending order
arr.sort(function(a, b){return b - a});
arr.sort((a, b) => b - a);javascript sort array of objects
const books = [
{id: 1, name: 'The Lord of the Rings'},
{id: 2, name: 'A Tale of Two Cities'},
{id: 3, name: 'Don Quixote'},
{id: 4, name: 'The Hobbit'}
]
compareObjects(object1, object2, key) {
const obj1 = object1[key].toUpperCase()
const obj2 = object2[key].toUpperCase()
if (obj1 < obj2) {
return -1
}
if (obj1 > obj2) {
return 1
}
return 0
}
books.sort((book1, book2) => {
return compareObjects(book1, book2, 'name')
})
// Result:
// {id: 2, name: 'A Tale of Two Cities'}
// {id: 3, name: 'Don Quixote'}
// {id: 4, name: 'The Hobbit'}
// {id: 1, name: 'The Lord of the Rings'}sorting of arraray's number element in javascript
let numbers = [0, 1, 2, 3, 10, 20, 30];
numbers.sort((a, b) => a - b);
console.log(numbers);Copyright © 2021 Codeinu
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