# JavaScript: Print the elements of an array

## JavaScript Array: Exercise-10 with Solution

Write a JavaScript program that prints the elements of the following array.

Note : Use nested for loops.
Sample array : var a = [[1, 2, 1, 24], [8, 11, 9, 4], [7, 0, 7, 27], [7, 4, 28, 14], [3, 10, 26, 7]];
Sample Output :
"row 0"
" 1"
" 2"
" 1"
" 24"
"row 1"
------
------

Visual Presentation:

Sample Solution:

JavaScript Code:

``````// Declare and initialize a sample 2-D array
var a = [[1, 2, 1, 24], [8, 11, 9, 4], [7, 0, 7, 27], [7, 4, 28, 14], [3, 10, 26, 7]];

// Iterate through each row in the 2-D array
for (var i in a) {
// Output the current row index
console.log("row " + i);

// Iterate through each element in the current row
for (var j in a[i]) {
// Output the current element value
console.log(" " + a[i][j]);
}
}
```
```

Output:

```row 0
1
2
1
24
row 1
8
11
9
4
row 2
7
0
7
27
row 3
7
4
28
14
row 4
3
10
26
7
```

Flowchart:

ES6 Version:

``````// Declare and initialize a sample 2-D array
const a = [
[1, 2, 1, 24],
[8, 11, 9, 4],
[7, 0, 7, 27],
[7, 4, 28, 14],
[3, 10, 26, 7]
];
// Iterate through each row in the 2-D array
for (const i in a) {
// Output the current row index
console.log(`row \${i}`);
// Iterate through each element in the current row
for (const j in a[i]) {
// Output the current element value
console.log(` \${a[i][j]}`);
}
}``````

Live Demo:

See the Pen JavaScript - Print the elements of an array- array-ex- 10 by w3resource (@w3resource) on CodePen.

Improve this sample solution and post your code through Disqus.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

﻿