isUndefined
isUndefined variable
Checks if the given value is undefined
.
Signature:
isUndefined: <T>(a: T) => a is Include<T, undefined>
Example
isUndefined(undefined); // true
isUndefined(2); // false
Checks if the given value is undefined
.
Signature:
isUndefined: <T>(a: T) => a is Include<T, undefined>
isUndefined(undefined); // true
isUndefined(2); // false