The following snippet shows how to write an abstract class and method. Goals The abstract class cannot be instantiated; The abstract method must be implemented. See example online at https://codesandbox.io/s/abstract-class-and-method-clvze Did you find it interesting? Follow me on Twitter.
Get the value of the first object property using Object.values() and array destructuring. See example online at https://codesandbox.io/s/value-of-the-first-object-property-b7dvj Did you find it interesting? Follow me on Twitter.
Because sometimes things aren’t so obvious – All these functions return undefined. See example online at https://codesandbox.io/s/returning-undefined-x6wxh Did you find it interesting? Follow me on Twitter.