typescript

When using a language like Java you can use enums to do some very interesting things. For example a Java enum can look like so: public enum Directions{ EAST ("E"), WEST ("W"), NORTH ("N"), SOUTH ("S") ; /* Important Note: Must have semicolon at * the end when there is a enum field or method */ private final String shortCode; Directions(String code) { this.shortCode = code; } public String getDirectionCode() { return this....

Working with TypeScript has been amazing. One of the most common things I’ve been finding my self checking was whether one variable is of a certain type. Let’s look at an example. interface Mammal { name: string; } interface Horse extends Mammal { canRun: boolean; } type Animal = Mammal | Horse; const animalThings = (animal: Animal) => { if (animal instanceof Horse) { // Error: 'Horse' only refers to a type, but is being used as a value here....