Hello JavaScript lovers
Today in this example, I will teach you to write a JavaScript program.Where you can sort an array of objects by its property values.
To understand about this example, you should have a good knowledge of the following JavaScript programming topics:
Example 1: Sort Array by Property Name
// program to sort array by property name
function compareName(a, b) {
// converting to uppercase to have case-insensitive comparison
const name1 = a.name.toUpperCase();
const name2 = b.name.toUpperCase();
let comparison = 0;
if (name1 > name2) {
comparison = 1;
} else if (name1 < name2) {
comparison = -1;
}
return comparison;
}
const students = [{name: 'Sara', age:24},{name: 'John', age:24}, {name: 'Jack', age:25}];
console.log(students.sort(compareName));Output
[{name: "Jack", age: 25},
{name: "John", age: 24},
{name: "Sara", age: 24}]In this program, the sort() method is use to Sort an Array by its property values.
The sort() method sorts its elements according to the values returned by a custom sort function (compareName in this case).
Example 2: Sort Array by Property Age
// program to sort array by property name
function compareAge(a, b) {
return a.age - b.age;
}
const students = [{name: 'Sara', age:24},{name: 'John', age:22}, {name: 'Jack', age:27}];
console.log(students.sort(compareAge));[{name: "John", age: 22},
{name: "Sara", age: 24},
{name: "Jack", age: 27}]In this program, the sort() method is used to sort an array element by the age property.
To compare the age property of two objects, we can simply subtract them.
