# JavaScript: Compute the value of bn where n is the exponent and b is the bases

## JavaScript Function: Exercise-15 with Solution

Write a JavaScript function to compute the value of bn where n is the exponent and b is the bases. Accept b and n from the user and display the result.

Sample Solution: -

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset=utf-8 />
<title>Compute the value of bn where n is the exponent and b is the bases</title>
<body>
</body>
</html>
```
```

JavaScript Code:

``````function exp(b,n)
{
var ans = 1;
for (var i =1; i <= n; i++)
{
ans = b * ans;
}
return ans;
}
console.log(exp(2, 3));
```
```

Sample Output:

```8
```

Flowchart: Live Demo:

See the Pen JavaScript - Compute the value of bn where n is the exponent and b is the bases-function-ex- 15 by w3resource (@w3resource) on CodePen.

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## JavaScript: Tips of the Day

Shorten an array using its length property

A great way of shortening an array is by redefining its length property.

```let array = [0, 1, 2, 3, 4, 5, 6, 6, 8, 9]
array.length = 4
// Result: [0, 1, 2, 3]
```

Important to know though is that this is a destructive way of changing the array. This means you lose all the other values that used to be in the array.

Ref: https://bit.ly/2LBj213