Function isMatching

isMatching takes pattern and returns a type guard function, cheching if a value matches this pattern.

Read documentation for isMatching on GitHub

Example

const hasName = isMatching({ name: P.string })

 declare let input: unknown

 if (hasName(input)) {
   // `input` inferred as { name: string }
   return input.name
 }
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isMatching takes pattern and a value and checks if the value matches this pattern.

Read documentation for isMatching on GitHub

Example

declare let input: unknown

 if (isMatching({ name: P.string }, input)) {
   // `input` inferred as { name: string }
   return input.name
 }
Copy