Skip to Content
Learning TypeScript 2.x - Second Edition
book

Learning TypeScript 2.x - Second Edition

by Remo H. Jansen
April 2018
Beginner content levelBeginner
536 pages
13h 21m
English
Packt Publishing
Content preview from Learning TypeScript 2.x - Second Edition

Lambda expressions

Lambda expressions are just expressions that can be used to declare anonymous functions (functions without a name). Before the ES6 specification, the only way to assign a function as a value to a variable was using a function expression:

const log = function(arg: any) { console.log(arg); }; 

The ES6 specification introduced the arrow function syntax:

const log = (arg: any) => console.log(arg); 
Please refer to Chapter 3, Working with Functions, and Chapter 6, Understanding the Runtime, to learn more about arrow functions and function expressions.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Mastering TypeScript - Fourth Edition

Mastering TypeScript - Fourth Edition

Nathan Rozentals
Learning TypeScript

Learning TypeScript

Josh Goldberg
TypeScript for Beginners

TypeScript for Beginners

Bharath Thippireddy

Publisher Resources

ISBN: 9781788391474Supplemental Content