=> denotes a lambda. The left side is the args, the right side is the body. Lambdas are typically a single expression, but can have a statement body instead. A

=> denotes a lambda. The left side is the args, the right side is the body. Lambdas are typically a single expression, but can have a statement body instead. A semicolon denotes the end of a statement. var square = x => x * x; var square = x => { return x * x; };