.unshift()
Adds one or more elements to beginning of array and returns new length.
Syntax
array.unshift(item1, item2, ...);
Examples
To add the element 'Monday'
to the daysOfWeek
array:
const daysOfWeek = ['Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday',];daysOfWeek.unshift('Monday');console.log(daysOfWeek);// Output: ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']
To add elements 1
and 2
to the countToTen
array:
const countToTen = [3, 4, 5, 6, 7, 8, 9, 10];countToTen.unshift(1, 2);console.log(countToTen);// Output: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Contributors
- Anonymous contributors