JavaScript

June 6, 2023

How to use JavaScript Array length

Program to use JavaScript Array length

let a = ['Cat', 'Dog', 'Tiger', 'Lion', 'Elephant'];
let b = a.length;
console.log(b);

Output

5

Steps Description

1. Declare two variable a and b
2. Initialize two variable with value of array a = ['Cat', 'Dog', 'Tiger', 'Lion', 'Elephant'] and b
3. The array length() method outputs the index numbers of the array elements.
4. The value of b variable is displayed with the help of console.log inbuilt function

Program to use JavaScript Array length

let c = ['Cat', 'Dog', 'Tiger', 'Lion', 'Elephant'];
c.length = 3
console.log(c);

Output

[ 'Cat', 'Dog', 'Tiger' ]

Steps Description

1. Declare variable c
2. Initialize variable with value of array c = ['Cat', 'Dog', 'Tiger', 'Lion', 'Elephant']
3. The array length() method outputs the index numbers of the array elements.
4. The value of c variable is displayed with the help of console.log inbuilt function

Program to use JavaScript Array length

let d = [1,2,3,4,5,6,7,8,9,10];
let e = d.length;
console.log(e);

Output

10

Steps Description

1. Declare two variable d and e
2. Initialize two variable with value of array d = [1,2,3,4,5,6,7,8,9,10] and e = d.length
3. The array length() method outputs the index numbers of the array elements.
4. The value of e variable is displayed with the help of console.log inbuilt function

by : Suhel Akhtar