React-Hooks #
A collection of React Hooks.
tl;dr #
- Install by executing
npm install @wojtekmaj/react-hooksoryarn add @wojtekmaj/react-hooks. - Import by adding
import { useTick } from '@wojtekmaj/react-hooks'. - Do stuff with it!
const tick = useTick();
Server-side rendering #
All hooks from this package support SSR. Some hooks use browser-only APIs, e.g. useCurrentPosition. Such hooks, if they are supposed to return a value, will return null instead.
User guide #
Table of contents #
useCurrentPositionuseDebouncedEffectuseDebouncedStateuseDebouncedValueuseEventListeneruseIntersectionObserveruseLocalStorageuseMatchMediauseMutationObserveruseOnLineusePermissionStateusePrefersColorSchemeDarkusePrefersColorSchemeLightusePrefersReducedMotionusePrefersReducedTransparencyuseResizeObserveruseScrollLeftuseScrollLeftDirectionuseScrollLeftPercentuseScrollTopuseScrollTopDirectionuseScrollTopPercentuseSessionStorageuseSetIntervaluseSetTimeoutuseTickuseToggleuseWindowHeightuseWindowWidth
useCurrentPosition #
Returns current position from Geolocation API.
Sample usage #
import { useCurrentPosition } from '@wojtekmaj/react-hooks';
useCurrentPosition(); // { latitude: 0, longitude: 0 }
useDebouncedEffect #
Runs a given effect after a given delay.
Sample usage #
import { useDebouncedEffect } from '@wojtekmaj/react-hooks';
useDebouncedEffect(
() => {
// This will run after 1 second of value not changing.
},
[value],
1000,
);
useDebouncedState #
Returns a debounced state and a function to update it.
Sample usage #
import { useDebouncedState } from '@wojtekmaj/react-hooks';
const [value, setValue] = useDebouncedState('initialState', 1000); // ['initialState', Function]
useDebouncedValue #
Returns a debounced value.
Sample usage #
import { useDebouncedValue } from '@wojtekmaj/react-hooks';
const debouncedValue = useDebouncedValue(value, 1000); // This value will be updated after 1 second of value not changing.
useEventListener #
Adds event listener to a given element.
Sample usage #
import { useEventListener } from '@wojtekmaj/react-hooks';
useEventListener(element, 'click', onClick);
useIntersectionObserver #
Observes a given element using IntersectionObserver.
Sample usage #
import { useIntersectionObserver } from '@wojtekmaj/react-hooks';
useIntersectionObserver(element, config, onIntersectionChange);
useLocalStorage #
Returns a stateful value synchronized with localStorage, and a function to update it.
Sample usage #
import { useLocalStorage } from '@wojtekmaj/react-hooks';
const [value, setValue] = useLocalStorage('myKey', 'initialState'); // ['initialState', Function]
useMatchMedia #
Returns a flag which determines if the document matches the given media query string.
Sample usage #
import { useMatchMedia } from '@wojtekmaj/react-hooks';
const isDesktop = useMatchMedia('screen and (min-width: 1024px)'); // true / false
useMutationObserver #
Observes a given element using MutationObserver.
Sample usage #
import { useMutationObserver } from '@wojtekmaj/react-hooks';
useMutationObserver(element, config, onMutation);
useOnLine #
Returns the online status of the browser.
Sample usage #
import { useOnLine } from '@wojtekmaj/react-hooks';
const onLine = useOnLine(); // true
usePermissionState #
Returns permission state given permission name.
Sample usage #
import { usePermissionState } from '@wojtekmaj/react-hooks';
const state = usePermissionState({ name: 'geolocation' }); // 'granted'
usePrefersColorSchemeDark #
Returns a flag which determines if the document matches (prefers-color-scheme: dark) media feature.
Sample usage #
import { usePrefersColorSchemeDark } from '@wojtekmaj/react-hooks';
const prefersColorSchemeDark = usePrefersColorSchemeDark(); // true
usePrefersColorSchemeLight #
Returns a flag which determines if the document matches (prefers-color-scheme: light) media feature.
Sample usage #
import { usePrefersColorSchemeLight } from '@wojtekmaj/react-hooks';
const prefersColorSchemeLight = usePrefersColorSchemeLight(); // true
usePrefersReducedMotion #
Returns a flag which determines if the document matches (prefers-reduced-motion: reduce) media feature.
Sample usage #
import { usePrefersReducedMotion } from '@wojtekmaj/react-hooks';
const prefersReducedMotion = usePrefersReducedMotion(); // true
usePrefersReducedTransparency #
Returns a flag which determines if the document matches (prefers-reduced-transparency: reduce) media feature.
Sample usage #
import { usePrefersReducedTransparency } from '@wojtekmaj/react-hooks';
const prefersReducedTransparency = usePrefersReducedTransparency(); // true
useResizeObserver #
Observes a given element using ResizeObserver.
Sample usage #
import { useResizeObserver } from '@wojtekmaj/react-hooks';
useResizeObserver(element, config, onResize);
useScrollLeft #
Returns current scroll left position in pixels.
Sample usage #
import { useScrollLeft } from '@wojtekmaj/react-hooks';
const scrollLeft = useScrollLeft(); // 0
useScrollLeftDirection #
Returns current scroll left direction.
Sample usage #
import { useScrollLeftDirection } from '@wojtekmaj/react-hooks';
const scrollLeftDirection = useScrollLeftDirection(); // 'still' / 'left' / 'right'
useScrollLeftPercent #
Returns current scroll left position in percentage.
Sample usage #
import { useScrollLeftPercent } from '@wojtekmaj/react-hooks';
const scrollLeftPercent = useScrollLeftPercent(); // 0.5
useScrollTop #
Returns current scroll top position in pixels.
Sample usage #
import { useScrollTop } from '@wojtekmaj/react-hooks';
const scrollTop = useScrollTop(); // 0
useScrollTopDirection #
Returns current scroll top direction.
Sample usage #
import { useScrollTopDirection } from '@wojtekmaj/react-hooks';
const scrollTopDirection = useScrollTopDirection(); // 'still' / 'up' / 'down'
useScrollTopPercent #
Returns current scroll top position in percentage.
Sample usage #
import { useScrollTopPercent } from '@wojtekmaj/react-hooks';
const scrollTopPercent = useScrollTopPercent(); // 0.5
useSessionStorage #
Returns a stateful value synchronized with sessionStorage, and a function to update it.
Sample usage #
import { useSessionStorage } from '@wojtekmaj/react-hooks';
const [value, setValue] = useSessionStorage('myKey', 'initialState'); // ['initialState', Function]
useSetInterval #
Runs a given function every n milliseconds.
Sample usage #
import { useSetInterval } from '@wojtekmaj/react-hooks';
useSetInterval(fn, 1000);
useSetTimeout #
Runs a given function after n milliseconds.
Sample usage #
import { useSetTimeout } from '@wojtekmaj/react-hooks';
useSetTimeout(fn, 1000);
useTick #
Counts from 0, increasing the number returned every n milliseconds.
Sample usage #
import { useTick } from '@wojtekmaj/react-hooks';
const tick = useTick(1000); // 0 … 🕐 … 1 … 🕑 … 2 …
useToggle #
Returns a flag and a function to toggle it.
Sample usage #
import { useToggle } from '@wojtekmaj/react-hooks';
const [value, toggleValue] = useToggle(); // [false, Function]
useWindowHeight #
Returns the interior height of the window in pixels.
Sample usage #
import { useWindowHeight } from '@wojtekmaj/react-hooks';
const windowWidth = useWindowHeight(); // 900
useWindowWidth #
Returns the interior width of the window in pixels.
Sample usage #
import { useWindowWidth } from '@wojtekmaj/react-hooks';
const windowWidth = useWindowWidth(); // 1440
License #
The MIT License.
Author #
|
|
Wojciech Maj |