Set objects are collections of values, you can iterate its elements in insertion order. Create Map. Typescript Code. Iterate the map with keys and values. Creating an ES2015 Map from an Array in TypeScript To convert the values of a Map to an array: Call the values () method on the Map to get an iterator object that contains all of the values in the Map. Simplify Map(), Reduce() And Filter() In TypeScript … TypeScript Data Type - Never . I think the latter is quite important when you convert an object tree to JSON where maps can be nested somewhere deep down in other arbitrary objects and arrays. Typeof Type Operator - Using the typeof operator to create new types. get ('b'); // 50 The case for Immutability. TypeScript Map (Detailed Tutorial with Examples Es6 classes can be used in typescript with configuring Es6 library in typescript configuration . Let’s have a look: Method 1: Using toString(): toString converts a value to string. map over an array of objects. TypeScript Map is a new data structure introduced in ES6.A Map allows storing key-value pairs (i.e. ES6 Map Class Tutorials in Javascript Examples Typescript add the key-value pairs. Array.map method. map return array of … TypeScript