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IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n","sideEffects":false,"publishConfig":{"access":"public"},"_hasShrinkwrap":false,"_npmOperationalInternal":{"tmp":"tmp/use-is-mounted-ref_1.0.2_1613489778540_0.5248060486064645","host":"s3://npm-registry-packages"}}},"time":{"created":"2019-12-20T11:02:25.683Z","modified":"2026-09-09T12:43:28.205Z","1.0.0":"2019-12-20T11:02:26.079Z","1.0.1":"2019-12-24T15:43:54.541Z","1.0.2":"2021-02-16T15:36:18.711Z"},"license":"MIT","keywords":["react","hooks","hook"],"repository":{"url":"https://github.com/kaliberjs/use-is-mounted-ref.git","type":"git"},"description":"Returns a ref with a current value of true if mounted","contributors":[{"name":"Joost Kiens","email":"joost@kaliber.net"}],"maintainers":[{"email":"davey@kaliber.net","name":"daveykropf"},{"email":"ewestra@kaliber.net","name":"eecolor"},{"email":"jduijm@kaliber.net","name":"jerryduijm"},{"email":"development@kaliber.net","name":"kaliber-owner"},{"email":"nhoenderop@kaliber.net","name":"nhoenderop"},{"email":"jbrunemann@kaliber.net","name":"janbru"},{"email":"asmit@kaliber.net","name":"albertkaliber"},{"email":"mvanbrakel@kaliber.net","name":"mvanbrakel"},{"email":"Rvanschaik@kaliber.net","name":"r0h-oh"},{"email":"claan@kaliber.net","name":"1cln"},{"email":"mreimus@kaliber.net","name":"maart-22"},{"email":"ldavidsondescelles@kaliber.net","name":"yoreljenkins"},{"email":"mdevalk@kaliber.net","name":"mdevalk1983"},{"email":"guido.evertzen@gmail.com","name":"guido.evertzen"},{"email":"svroom@kaliber.net","name":"svroom-kaliber"},{"email":"tomharms93@proton.me","name":"tomharms"},{"email":"rinus.vh@hotmail.com","name":"rinus.vh"},{"email":"pgoddijn@gmail.com","name":"pgoddijn"},{"email":"jvankralingen@kaliber.net","name":"jvankralingen"}],"readme":"# useIsMountedRef\nReturns a ref with a `current` value of true when a component is mounted.\n\n## Motivation\nUseful when working with server side rendering. Comparable to `componentDidMount` in a class-based component. Does __not__ trigger a rerender.\n\nAnother use-case is to check if a component is still mounted after calling an async function.\n\n## Installation\n\n```\nyarn add @kaliber/use-is-mounted-ref\n```\n\n## Usage\n```jsx\nimport { useIsMountedRef } from '@kaliber/use-is-mounted-ref'\n\nfunction Component() {\n const [state, setState] = React.useState('⬇️')\n const isMountedRef = useIsMountedRef()\n\n // Use it to check if a component is still mounted after calling an async function.\n React.useEffect(\n () => {\n async function doSomethingAync() {\n try {\n await someAsyncFunction()\n } catch (err) {\n console.error(err)\n if (isMountedRef.current) setState('⚠️')\n }\n if (isMountedRef.current) setState('⬆️')\n }\n doSomethingAync()\n },\n [isMountedRef]\n )\n\n return (\n <>\n
{state}
\n \n )\n}\n\nfunction someAsyncFunction() {\n return new Promise(resolve => { window.setTimeout(resolve, 1000) })\n}\n```\n\n![](https://media.giphy.com/media/9SgOeNxFAh8Hu/giphy.gif)\n\n## Disclaimer\nThis library is intended for internal use, we provide __no__ support, use at your own risk. It does not import React, but expects it to be provided, which [@kaliber/build](https://kaliberjs.github.io/build/) can handle for you.\n\nThis library is not transpiled.","readmeFilename":"README.md"}