Component uses prop-types dependency but does not declare it as a dependency

[wojtekmaj]

Component uses prop-types dependency but does not declare it as a dependency resulting in app crashing if the user did not already install prop-types.

[ryanseddon]

It's listed as a peer-dependecy but I do know codesandbox complains it's missing, not sure if peer deps ever got ratified as an actual thing across different package managers

[wojtekmaj]

Yarn and PNPM do not install peerDependencies and npm's decision to install them is generally frowned upon. The safest bet is always to declare dependencies you use as, well, dependencies. A notable exceptions could be react and react-dom since you usually don't want to have multiple copies of that.