Typescript says types a and b have no overlap What does it mean

0 votes
const value = Math.random() < 0.5 ? "a" : "b";
if (value !== "a") {
  // ...
} else if (value === "b") {
This condition will always return 'false' since the types '"a"' and '"b"' have no overlap.

  // Oops, unreachable
}

Found this code in a tutorial. I want to understand the meaning of this error: "types '"a"' and '"b"' have no overlap."

What are they talking about?

Jul 5, 2022 in TypeSript by Logan
• 2,140 points
6,805 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

Related Questions In TypeSript

0 votes
1 answer

What is TypeScript and why would I use it in place of JavaScript?

TypeScript is a superset of JavaScript which primarily ...READ MORE

answered May 31, 2022 in TypeSript by Nina
• 3,060 points
568 views
0 votes
1 answer

What do square brackets mean in a type definition in Typescript?

I've missed a basic type of TypeScript: Tuples. So ...READ MORE

answered Jun 22, 2022 in TypeSript by Nina
• 3,060 points
3,181 views
0 votes
0 answers

What is TypeScript and why would I use it in place of JavaScript?

Can you please describe what the TypeScript ...READ MORE

Jul 18, 2022 in TypeSript by Logan
• 2,140 points
374 views
0 votes
1 answer
0 votes
1 answer

Now I know what 'pick' does. But I want to do the opposite and remove values from an object.

You can use the keyword Omit for ...READ MORE

answered May 27, 2022 in TypeSript by Nina
• 3,060 points
644 views
0 votes
1 answer

How to declare and initialize a Dictionary in Typescript

Apparently this doesn't work when passing the ...READ MORE

answered May 31, 2022 in TypeSript by Nina
• 3,060 points
6,539 views
0 votes
1 answer

How to set meta tags using Angular universal SSR and ngx-seo plug-in?

first Install the plug-in with npm i ngx-seo ...READ MORE

answered Feb 11, 2022 in Others by narikkadan
• 63,600 points
2,236 views
0 votes
1 answer

How to use next-seo for setting nextjs meta tag with multiple OGP images?

https://github.com/garmeeh/next-seo use this git repo that contains ...READ MORE

answered Feb 24, 2022 in Others by narikkadan
• 63,600 points
6,160 views
0 votes
0 answers

how to sign bitcoin psbt with ledger?

I'm trying to sign a PSBT transaction ...READ MORE

Mar 9, 2022 in Blockchain by Soham
• 9,710 points
1,710 views
0 votes
1 answer

Can't bind to 'ngModel' since it isn't a known property of 'input'

Just add this in the app.module.ts file: import { FormsModule ...READ MORE

answered Apr 30, 2022 in Other DevOps Questions by narikkadan
• 63,600 points
4,487 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP