External module "assert/is-undefined/docs/types/index.d"

Export assignment isUndefined

• isUndefined(value: any): boolean

• Tests if a value is undefined.

  Parameters

  • value: any

    value to test

  Returns boolean

  boolean indicating whether value is undefined

  Example

  var bool = isUndefined( undefined );
  // returns true
  
  bool = isUndefined( null );
  // returns false