Bundleware, Toolbar Script Reference

Last site update 30th October 2026

React Hooks

HookAPI 2

useState

SignatureuseState<S>(initial: S | (() => S)): [S, SetState<S>]useState<S = undefined>(): [S | undefined, SetState<S | undefined>]
Take it fromconst { useState } = Bundleware;

useReducer

SignatureuseReducer<S, A>(reducer: (state: S, action: A) => S, initial: S): [S, (action: A) => void]useReducer<S, A, I>(reducer: (state: S, action: A) => S, argument: I, init: (argument: I) => S): [S, (action: A) => void]
Take it fromconst { useReducer } = Bundleware;

useEffect

Runs after the browser paints. Throwing is reported on the toolbar.

SignatureuseEffect(effect: () => void | (() => void), deps?: readonly unknown[]): void
Take it fromconst { useEffect } = Bundleware;

useLayoutEffect

Runs before the browser paints; its cleanup runs synchronously on unmount.

SignatureuseLayoutEffect(effect: () => void | (() => void), deps?: readonly unknown[]): void
Take it fromconst { useLayoutEffect } = Bundleware;

useRef

useRef(null) for an element: <input ref={field} />, then field.current.

SignatureuseRef<T = any>(initial: null): { current: T | null }useRef<T>(initial: T): { current: T }useRef<T = undefined>(): { current: T | undefined }
Take it fromconst { useRef } = Bundleware;

useMemo

SignatureuseMemo<T>(factory: () => T, deps: readonly unknown[]): T
Take it fromconst { useMemo } = Bundleware;

useCallback

SignatureuseCallback<T extends (...args: any[]) => any>(callback: T, deps: readonly unknown[]): T
Take it fromconst { useCallback } = Bundleware;