@queso/attempt/attempt.mjs

Wraps func in a try...catch.

/**
 * Wraps `func` in a `try...catch`.
 * @param func The function to wrap.
 * @category Util
 * @returns A new wrapper function that, when called, returns a tuple of `[err, success]`.
 * @example
function exclaim(message: string) {
    return message + '!'
}
attempt(exclaim)('hi')
 */
export default function attempt(
	/**
	 * The function to wrap in a try...catch.
	 */
	func,
) {
	const wrapperName = `attempt(${func.name})`
	return {
		/**
		 * This is a wrapper function provided by `@queso/attempt`.
		 * The original function is called inside of a try...catch.
		 */
		[wrapperName]: (...args) => {
			try {
				return [null, func(...args)]
			} catch (reason) {
				return [reason]
			}
		},
	}[wrapperName]
}