# JavaScript: Convert an given angle from degrees to radians

## JavaScript fundamental (ES6 Syntax): Exercise-246 with Solution

Write a JavaScript program to convert an given angle from degrees to radians.

• Use Math.PI and the degree to radian formula to convert the angle from degrees to radians.

Sample Solution:

JavaScript Code:

``````//#Source https://bit.ly/2neWfJ2
const degreesToRads = deg => (deg * Math.PI) / 180.0;
```
```

Sample Output:

```1.5707963267948966
0.5235987755982988
```

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-246-1 by w3resource (@w3resource) on CodePen.

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## JavaScript: Tips of the Day

How to check whether a string contains a substring in JavaScript?

ECMAScript 6 introduced String.prototype.includes:

```const string = "foo";
const substring = "oo";

console.log(string.includes(substring));
```

includes doesn't have Internet Explorer support, though. In ECMAScript 5 or older environments, use String.prototype.indexOf, which returns -1 when a substring cannot be found:

```var string = "foo";
var substring = "oo";

console.log(string.indexOf(substring) !== -1);
```

Ref: https://bit.ly/3fFFgZv