New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

isNumber(NaN) #405

Open

imsfc opened this issue May 6, 2024 · 0 comments

imsfc commented May 6, 2024

typeof NaN // 'number'

isNumber(NaN) // false

function some(): number | number[] {
  return NaN
}

const ret = some()

if (isNumber(ret)) {
 // ret is number
 // Expecting NaN entering this branch
} else {
 // ret is number[]
}

MarlonPassos-git mentioned this issue

fix(isNumber)!: return true for NaN values radashi-org/radashi#248

Open

3 tasks

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment