Suppose, we have a nested array of numbers like this −
const arr = [23, 6, [2,[6,2,1,2], 2], 5, 2];
We are required to write a program that should print the numbers (elements) of this array to the screen.
The printing order of the numbers should according to the level upto which they are nested.Therefore, the output for the above input should look like this −
23 6 2 6 2 1 2 2 5 2
Example
The code for this will be −
<!DOCTYPE html>
<html>
<head>
<meta charset="utf−8">
<meta name="viewport" content="width=device−width">
<title>PATTERN</title>
</head>
<body>
<script>
const arr = [23, 6, [2, [6, 2, 1, 2], 2], 5, 2];
arr.reduce(function iter(level) {
return function (node, item) {
var pTag = document.createElement('p');
pTag.style.marginLeft = level + 'px';
node.appendChild(pTag);
if (Array.isArray(item)) {
item.reduce(iter(level || 50), pTag);
} else {
pTag.appendChild(document.createTextNode(item));
}
return node;
};
}(0), document.body);
</script>
<p></p>
</body>
</html>And the output on the screen will be −
