In this Article we will go through how to calculate the angle of a line defined by two points only using single line of code in JavaScript.
This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => `Arrow Function`

.

Let's define this short function:

```
// In radians
const radiansAngle = (p1, p2) => Math.atan2(p2.y - p1.y, p2.x - p1.x);
// In degrees
const degreesAngle = (p1, p2) => Math.atan2(p2.y - p1.y, p2.x - p1.x) * 180 / Math.PI;
```

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