JavaScript: Print the elements of an array

Last update on April 24 2023 07:07:52 (UTC/GMT +8 hours)

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"
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Pictorial Presentation:

JavaScript: Print the elements of an array

Sample Solution:

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Print 2-D array</title>
</head>
<body>
</body>
</html>

JavaScript Code:

// 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]];
 
for (var i in a) 
{
   console.log("row " + i);
   for (var j in a[i]) 
     {
      console.log(" " + a[i][j]);
     }
}

Sample Output:

Flowchart:

ES6 Version:

// 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]];
 
for (const i in a) 
{
   console.log(`row ${i}`);
   for (const j in a[i]) 
     {
      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.

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