Comparing Filter, Map, and Find in Swift and JavaScrip
Comparing Filter, Map, and Find in Swift and JavaScript In this blog post, we'll explore how to use three fundamental array methods, filter , map , and find , in both Swift and JavaScript. We'll compare the shorthand notation ( $0 , $1 , etc.) used in Swift with the named parameter notation for increased clarity and readability. Filter in Swift: let numbers = [1, 2, 3, 4, 5] // Using $0 shorthand notation let evenNumbers = numbers.filter { $0 % 2 == 0 } // Output: [2, 4] // Using named parameter notation let oddNumbers = numbers.filter { number in return number % 2 != 0 } // Output: [1, 3, 5] Filter in JavaScript: const numbers = [1, 2, 3, 4, 5]; // Using anonymous function const evenNumbers = numbers.filter(num => num % 2 === 0); // Output: [2, 4] // Using named function const oddNumbers = numbers.filter(function(num) { return num % 2 !== 0; }); // Output: [1, 3, 5] Map in Swift: let numbers...
