fx-flow v0.7.0 / pipe/strict / isUndefined
Function: isUndefined()
isUndefined<
A>(args):args is Include<A, undefined>
Check whether args is undefined.
Type parameters
• A
Parameters
• args: A
Returns
args is Include<A, undefined>
Example
typescript
isArray([1, 2, 3]); // false
isArray(undefined); // true
isArray(null); // false