react-use-breakpoint

Rational

A React hook to get the current breakpoint via the MatchMedia API. Tiny, fast, and easy to use. I created this as I found myself copying this bad boy around every project I did... so I figured I'd make it a package. Other plugins out there are not exactly what I needed, and although I think getting breakpoints in JS should be a last resort. There is undoubtedly a time and place for it. Especially as designers design more creative layouts that are not easily achievable with CSS alone.

Getting Started

Install the package

npm install react-use-breakpoint
yarn add react-use-breakpoint

Wrap your apps root component with the BreakpointProvider component. This will provide the useBreakpoint hook to all child components.

import {BreakpointProvider} from 'react-use-breakpoint';

const App = () => (
    <BreakpointProvider>
        <MyComponent/>
    </BreakpointProvider>
);

The default breakpoint size values are:

| Breakpoint | Size (px) | |------------|-----------| | xs | 360 | | sm | 640 | | md | 960 | | lg | 1280 | | xl | 1440 |

You can customise these values xs, sm, md, lg, xl to fit your needs like so (strings or numbers are accepted):

import {BreakpointProvider} from 'react-use-breakpoint';

const App = () => (
    <BreakpointProvider
        breakpointOverrides={{
            xs: 360,
            sm: '400'
        }}
    >
        <MyComponent/>
    </BreakpointProvider>
);

Hook Usage

Within all child components you can then leverage the useBreakpoint() hook to get the current breakpoints.

Specifying no arguments will return an object with min and max breakpoints { min: {...}, max: {...} }. The function overload handles the types for you 😉.

import {useBreakpoint} from 'react-use-breakpoint';

const MyComponent = () => {
    const {min} = useBreakpoint();
    const {isXs} = min;

    return <div>Current breakpoint: {breakpoint}</div>;
};

If you specify a breakpoint "direction" (min or max) you will get an object back with all the breakpoint sizes and their assigned boolean value.

import {useBreakpoint} from 'react-use-breakpoint';

const MyComponent = () => {
    const {isXs, isSm, isMd} = useBreakpoint('min');
    // isXs = true
    // isSm = false
    // isMd = false
...
    return <div>Current breakpoint: {breakpoint}</div>;
};

Feature Requests...

Sure... open up an issue, and I'll see what I can do.

Todo

• [ ] Add tests for the hook