isLength

Checks whether a value is a valid array-like length: a non-negative safe integer (0 <= value <= Number.MAX_SAFE_INTEGER).

Available since v3.0.3

Import

import { isLength } from '@helpers4/guard';
// or, from the all-in-one package (same code, one install):
import { isLength } from 'helpers4/guard';

isLength(value: unknown): value is number

Parameter	Type	Description
`value`	`unknown`	The value to check

value is number — true if value is a valid length

Guards against negative, fractional, or unsafe length values.

isLength(3)   // => true
isLength(-1)  // => false
isLength(1.5) // => false