ref returned by toRefs(props) have type Ref<X | undefined>

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" alt="Lightrun" class="TemplateHeader-module--logoImg--5e9c4"/></a><nav class="TemplateHeader-module--navWrapper--b3c39"><div class="TemplateHeader-module--navList--a14d9"><div class="TemplateHeader-module--btnMenu--375a2"><button class="TemplateHeader-module--item--c5b2d">Dev Observability <img src="data:image/svg+xml;base64,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" alt="arrow_down"/></button><div class="SharedMenu-module--wrapperContainer--6e38e "><div class="SharedMenu-module--wrapper--49c2c"><p class="titleGradient">Dev Observability</p><div class="SharedMenu-module--menuList--d425c"><a href="https://lightrun.com/developer-observability/" class="SharedMenu-module--link--ad046">What is Developer Observability?</a><a href="https://lightrun.com/why-lightrun/" class="SharedMenu-module--link--ad046">Why Lightrun?</a><a href="https://lightrun.com/architecture/" class="SharedMenu-module--link--ad046">Lightrun Architecture</a><a href="https://lightrun.com/sdk/" class="SharedMenu-module--link--ad046"><span>The Lightrun SDK</span><sup>TM</sup></a><a href="https://lightrun.com/plugin/" class="SharedMenu-module--link--ad046">The Lightrun IDE Plugin</a><a href="https://lightrun.com/security/" class="SharedMenu-module--link--ad046">Security</a><a href="https://lightrun.com/comparisons/" class="SharedMenu-module--link--ad046">Comparisons</a><a 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alt="arrow_down"/></button><div class="SharedMenu-module--wrapperContainer--6e38e SharedMenu-module--expandedMenuContainer--4c975"><div class="SharedMenu-module--wrapper--49c2c"><div class="SharedMenu-module--productWrapper--40db0"><div><div class="titleGradient">Architectures</div><div class="SharedMenu-module--mainBlockMenu--064a3"><div class="SharedMenu-module--menuBlock--9a914"><div class="SharedMenu-module--subTitleList--11ca1">Deployment Patterns</div><div class="SharedMenu-module--menuList--d425c"><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/kubernetes-troubleshooting/">Kubernetes Debugging</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/serverless-debugging/">Serverless Debugging</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/feature-flag-validation/">Feature Flag Debugging</a></div></div><div class="SharedMenu-module--menuBlock--9a914"><div class="SharedMenu-module--subTitleList--11ca1">Environments</div><div class="SharedMenu-module--menuList--d425c"><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/enviroments/dev-qa-staging/">Dev/QA/Staging</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/enviroments/ci-cd-pipelines/">CI/CD</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/enviroments/production/">Production</a></div></div></div></div><div><div class="titleGradient">Roles</div><div class="SharedMenu-module--mainBlockMenu--064a3"><div><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/roles/backend-developer/">Backend Developer</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/roles/devops-sre/">DevOps Engineer/SRE</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/roles/engineering-leader/">Engineering Leader</a></div></div></div><div><div class="titleGradient">Benefits</div><div class="SharedMenu-module--mainBlockMenu--064a3"><div><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/use-cases/reduce-mttr/">Reduce MTTR</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/use-cases/improve-developer-productivity/">Improve Dev Productivity</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/use-cases/optimize-logging-costs/">Optimize Logging Costs</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/use-cases/reduce-time-to-market/">Reduce Time to Market</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/use-cases/improve-dora-metrics/">Improove DORA metrics</a></div></div></div><div><div class="titleGradient">Features</div><div class="SharedMenu-module--mainBlockMenu--064a3"><div><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/logs/">Dynamic Logs</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/metrics/">Zero-config Metrics</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/snapshots/">Snapshots (Virtual Breakpoints)</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/integrations/#">Integrations</a><a class="SharedMenu-module--link--ad046" href="https://lightrun.com/integrations/#">Comparisons</a></div></div></div><div class="SharedMenu-module--watchNowBar--38120"><div class="WatchNow-module--watchNow--0a727 SharedMenu-module--watchBarPanel--43c6e"><span class="titleGradient WatchNow-module--newTitle--646e1">NEW!</span><span class="WatchNow-module--description--bb7f0">Watch our log cost reduction masterclass with Google, Shopify and the CNCF!<a href="https://lightrun.com/resources/the-hidden-cost-of-overlogging/" class="WatchNow-module--watchNowLink--22d33">Watch Now&gt;</a></span></div></div></div><div class="SharedMenu-module--arrow--d0e9b SharedMenu-module--expandedMenuArrow--4fdac"/></div></div></div><a href="https://lightrun.com/pricing" 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class="MobileMenu-module--navItem--99a59"><a href="https://playground.lightrun.com" class="MobileMenu-module--linkMenuItem--341df">Debug Wordle</a></li></ul><div class="MobileMenu-module--controlButtons--b6016"><ul class="ControlButtons-module--linkList--df15b"><li class="ControlButtons-module--underLine--a2f91"><a href="https://app.lightrun.com/api/oauth/login">Log in</a></li><li class="ControlButtons-module--item--da1af"><a href="https://lightrun.com/get-a-lightrun-demo/" class="ButtonLink-module--linkBtn--3a273 ButtonLink-module--transparent--5a2f9 ">Book a Demo</a></li><li class="ControlButtons-module--item--da1af"><a href="https://app.lightrun.com/api/oauth/register" class="ButtonLink-module--linkBtn--3a273 ButtonLink-module--fill--6b8b9 ">Start For Free</a></li></ul></div></div></div></div></div></header><main><div class="Hero-module--hero--e76bd"><div class="Container-module--container--052f0"><div class="Hero-module--overlay--92431"><img src="/answers/static/question-mark-6a6962885f54fa6c88cf5e38232283da.png" alt="question-mark" class="Hero-module--heroImg--8554a"/><div class="Hero-module--wrapper--29990"><h1>Stuck on an issue?</h1><p class="Hero-module--description--894ed">Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.<br/></p><p class="Hero-module--description--894ed Hero-module--strongText--4ea65">And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.</p><button class="Hero-module--btnHero--4efca">Talk to a Lightrun Answers expert</button></div></div></div></div><section class="sectionWrapper IssueSummary-module--issueSummary--29ccb"><div class="Container-module--container--052f0"><div class="IssueSummary-module--wrapper--5e867"><h2 class="IssueSummary-module--title--1229e">ref returned by toRefs(props) have type Ref&lt;X | undefined&gt; | undefined</h2><a href="https://github.com/vuejs/core/issues/6420" class="IssueSummary-module--linkUnderline--4cc7f">See original GitHub issue</a></div><div class="IssueSummary-module--wrapperGrid--5ff55"><div class="IssueSummary-module--descriptionWrapper--3a1cb"><h3>Issue Description</h3><div class="LeftScrollContainer-module--wrapper--9987b IssueSummary-module--textContainer--3e705 "><div class="LeftScrollContainer-module--content--0b83d"><div><h3>Vue version</h3> <p>latest, 3.2.37</p> <h3>Link to minimal reproduction</h3> <p><a href="https://codesandbox.io/s/vigorous-sound-6m9x2d">https://codesandbox.io/s/vigorous-sound-6m9x2d</a></p> <h3>Steps to reproduce</h3> <p>Check sandbox link provided in minimal reproduction field and run <code>npm run type-check</code> in terminal: <h3>What is expected?</h3> <p>Expected that the <code>type-check</code> action returns no error in <code>buggedComponent.vue</code> that is the type of <code>optionalProperty</code> in <code>anyProperty</code> assignation detects as <code>string</code> because all conditions that may detect and prevent undefined type are passed: <h3>What is actually happening?</h3> <p>typescript compiler detects type of the <code>optionalProperty</code> in <code>anyProperty</code> assign condition as <code>string|undefined</code></p> <h3>System Info</h3> <p><em>No response</em></p> <h3>Any additional comments?</h3> <p>If you dont want to check the reproduction link, there are some photos that describes the problem:<img src="https://user-images.githubusercontent.com/53368344/183288261-369f86af-670a-43a9-b45f-c969ff79f12e.png" alt="изображение"/> </div></div></div></div><div class="IssueSummary-module--descriptionWrapper--3a1cb"><h3>Issue Analytics</h3><ul class="IssueSummary-module--analyticsWrapper--8f2e1"><li><span class="IssueSummary-module--boldTitle--7ed35">State:</span><img src="data:image/svg+xml;base64,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" alt="open"/></li><li>Created 8 months ago</li><li><span class="IssueSummary-module--boldTitle--7ed35">Comments:</span><span>20 (12 by maintainers)</span></li></ul></div></div></div></section><section class="sectionWrapper TopResultsSection-module--topResultsSection--ece62"><div class="Container-module--container--052f0"><div class="TopResultsSection-module--wrapper--4186d"><section class="TopGitHubComments-module--commentsSection--674bb"><h4 class="H4-module--title--7a773 "><img src="/answers/static/github_icon-09b634433ea463575cb8c3c7818ee4e2.svg" alt="github_icon"/>Top GitHub Comments</h4><div class="TopGitHubComments-module--commentsContainer--87a5a"><div class="TopGitHubComments-module--commentsWrapper--89d00"><div class="TopGitHubComments-module--itemWrapper--c6dba"><div class="TopGitHubComments-module--itemHead--c0a84"><div class="TopGitHubComments-module--itemReactions--3aa39"><span class="TopGitHubComments-module--count--e5170">1</span><span class="TopGitHubComments-module--description--034b2">reaction</span></div><a href="https://github.com/vuejs/core/issues/6420#issuecomment-1254936651" class="TopGitHubComments-module--name--a03f6">yangliguo7</a><span class="TopGitHubComments-module--itemTitle--6bdb1">commented, Sep 22, 2022</span></div><div class="LeftScrollContainer-module--wrapper--9987b TopGitHubComments-module--scrollContainer--9d8cc"><div class="LeftScrollContainer-module--content--0b83d"><div><p>same problem。 But I found something even weirder If you dont pass in a variable to <code>defineProps</code>, This property will not be undefined after <code>torefs</code>。 The code like</p> <pre><code>const props = defineProps({ form: { type: Object, required: true, formOptions: { type: Array as PropType&lt;string[]&gt;, required: true,