@efflore/ui-element/src/core/maybe.ts

UIElement - minimal reactive framework based on Web Components

import { isNullish } from './is-type'

/* === Types === */

type Maybe<T> = T[]

/* === Exported Function === */

/**
 * Create an array for a given value to gracefully handle nullable values
 * 
 * @since 0.8.0
 * @param {unknown} value - value to wrap in an array
 * @returns {T[]} - array of either zero or one element, depending on whether the input is nullish
 */
const maybe = <T>(value: T | null | undefined): T[] => isNullish(value) ? [] : [value]

export { type Maybe, maybe }