@monstermann/fn
Version:
A utility library for TypeScript.
30 lines (28 loc) • 702 B
JavaScript
import { dfdlT } from "@monstermann/dfdl";
//#region src/number/isFloat.ts
/**
* `isFloat(value)`
*
* Returns `true` if `value` is a finite floating-point number (not an integer), otherwise `false`. This function acts as a type guard.
*
* ```ts
* isFloat(3.14); // true
* isFloat(0.5); // true
* isFloat(42); // false
* isFloat(NaN); // false
* isFloat(Infinity); // false
* ```
*
* ```ts
* pipe(3.14, isFloat()); // true
* pipe(0.5, isFloat()); // true
* pipe(42, isFloat()); // false
* pipe(NaN, isFloat()); // false
* pipe(Infinity, isFloat()); // false
* ```
*/
const isFloat = dfdlT((value) => {
return Number.isFinite(value) && !Number.isInteger(value);
}, 1);
//#endregion
export { isFloat };