@writetome51/index-is-valid

indexIsValid(index, arrayLength): boolean

Returns true or false based on whether or not index can exist in arrayLength.
index can be negative or positive.

Examples

indexIsValid(0, 0); // --> false

indexIsValid(1, 1); // --> false

indexIsValid(-1, 1); // --> true

indexIsValid(1, 2); // --> true

indexIsValid(-2, 2); // --> true

indexIsValid(-3, 2); // --> false

Installation

npm i @writetome51/index-is-valid

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import { indexIsValid } from '@writetome51/index-is-valid';

License

MIT