JavaScript stack for startups, good idea?

[omorhefere]

What are you thought on building a startup using just javascript: Node Js backend; React Website; React Native + Expo for mobile apps.

Is a maerketplace

[x0hm]

There are plenty of products that are built using a similar stack. There's nothing wrong with it.

Use the tools that make sense to you.

[k0t0n0]

from past few months i have been working on similar app.

in my experience libraries/framework are awesome. but js as language require more care compare to php/python.

[omorhefere]

Because it doesn't have types? Have you used flow?