{"id":7083,"date":"2022-12-13T17:43:02","date_gmt":"2022-12-13T16:43:02","guid":{"rendered":"https:\/\/solidt.eu\/site\/?p=7083"},"modified":"2022-12-13T17:44:24","modified_gmt":"2022-12-13T16:44:24","slug":"react-hook-usesubject","status":"publish","type":"post","link":"https:\/\/solidt.eu\/site\/react-hook-usesubject\/","title":{"rendered":"React Hook useSubject"},"content":{"rendered":"\n<div style=\"height: 250px; position:relative; margin-bottom: 50px;\" class=\"wp-block-simple-code-block-ace\"><pre class=\"wp-block-simple-code-block-ace\" style=\"position:absolute;top:0;right:0;bottom:0;left:0\" data-mode=\"typescript\" data-theme=\"monokai\" data-fontsize=\"14\" data-lines=\"Infinity\" data-showlines=\"true\" data-copy=\"false\">\/* eslint-disable react-hooks\/exhaustive-deps *\/\nimport { useEffect, useState } from \"react\";\nimport { Subject } from \"rxjs\";\nfunction useSubject&lt;T>(subject: Subject&lt;T| undefined>, initialValue?: T) : [T | undefined, (val : T | undefined)=> any] {\n    const [data, setData] = useState&lt;T | undefined>(initialValue);\n    useEffect(() => {\n        if (!subject) { return; }\n        const subscription = subject.subscribe(x => {\n            setData(x);\n        });\n        return () => subscription.unsubscribe();\n    }, [subject]);\n    function updateData(val : T| undefined) {\n        subject.next(val);\n    }\n    return [data, updateData];\n}\nexport default useSubject;<\/pre><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7083","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/7083","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/comments?post=7083"}],"version-history":[{"count":2,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/7083\/revisions"}],"predecessor-version":[{"id":7085,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/posts\/7083\/revisions\/7085"}],"wp:attachment":[{"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/media?parent=7083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/categories?post=7083"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solidt.eu\/site\/wp-json\/wp\/v2\/tags?post=7083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}