Answers for "how to check if a variable is of type string in typescript"

typescript if variable is string

if (typeof myVar === 'string' || myVar instanceof String)
// it's a string
else
// it's something else

Posted by: Guest on September-15-2021

typescript check type of variable

if (fooOrBar instanceof Foo){
  // TypeScript now knows that `fooOrBar` is `Foo`
}

Posted by: Guest on December-03-2020

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