hasValue

Checks whether a value should be treated as present. It uses emptyOrNull, so null, undefined, empty arrays, and blank strings are considered missing.

The function is a type guard for the non-nullable value.

Importing

import { hasValue } from '@almighty-shogun/utils';

Usage

import { hasValue } from '@almighty-shogun/utils';

const value: string | null = 'project';

if (hasValue(value)) {
    value.toUpperCase();
}

Parameters

value: NullableOrUndefinable<T>
Value to test.

Returns

true when the value is not normalized to null by emptyOrNull.

Uses

• NullableOrUndefinable
• emptyOrNull

Type signature

declare function hasValue<T>(value: NullableOrUndefinable<T>): value is T;