prelude.ts•709 B
export const unknownToError = (unknown: unknown): Error => {
if (unknown instanceof Error) return unknown
return new Error(`Unknown error: ${unknown}`)
}
export const id = <T>(value: T) => value
export type Mapped<T> = { [Key in keyof T]: T[Key] }
export type NoInfer<T> = [T][T extends any ? 0 : never]
export const isObject = (obj: unknown): obj is object => {
return obj !== null && typeof obj === 'object' && !Array.isArray(obj)
}
export const tryCatch = <$Error extends Error, $Return>(
fn: () => $Return,
catcher?: (e: Error) => $Error,
): $Return | $Error => {
try {
return fn()
} catch (e) {
return catcher ? catcher(unknownToError(e)) : (unknownToError(e) as $Error)
}
}