EN
TypeScript - convert degrees to radians (deg to rad)
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In this article, we're going to have a look at how to convert degrees to radians using TypeScript. In TypeScript, there is no built-in conversion method. It is necessary to write your own one.
Conversion can be made with the following formula:
A simple implementation is presented below.
1. Custom conversion method example
const degToRad = (deg: number): number => {
return deg * (Math.PI / 180.0);
};
// Usage example:
console.log(degToRad(0.0)); // 0 0.0 radians
console.log(degToRad(90.0)); // 1.5707963267948966 ~Math.PI / 2 radians
console.log(degToRad(180.0)); // 3.141592653589793 ~Math.PI radians
console.log(degToRad(30)); // 0.5235987755982988 ~Math.PI / 6 radians
console.log(degToRad(45)); // 0.7853981633974483 ~Math.PI / 4 radians
console.log(degToRad(90)); // 1.5707963267948966 ~Math.PI / 2 radians
console.log(degToRad(180)); // 3.141592653589793 ~Math.PI radians
console.log(degToRad(270)); // 4.71238898038469 ~3 * Math.PI / 2 radians
console.log(degToRad(360)); // 6.283185307179586 ~2 * Math.PI radians
Output:
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1.5707963267948966
3.141592653589793
0.5235987755982988
0.7853981633974483
1.5707963267948966
3.141592653589793
4.71238898038469
6.283185307179586