How do you access an element of an array? let element = array[5] The above property element is set to the sixth element from the array. But what does the “[5]” here mean? We’ve also noticed this in dictionary where we access the value using a key. Is it something…

You’ve learnt about functions, and you’ve learnt about data types like structs, classes and enums. Methods are simply functions that are associated with a type. Similar to properties, we can have instance methods and type methods. The entire playground for these tutorials can be found here! Instance Methods As the word suggests…

Properties are simply variables or constants inside a struct, class or enum. We can have stored properties which can hold constants and variables for us. We also have computed properties that do not hold any data but it gets computed when we ask for it. We will also look type…

Structures and Classes make the building blocks of your program. They’re capable of storing data and functionality in the form of constants, variables and functions. This articles covers a broad range of topics from understanding what are structs and classes and why do we need them, how to create them…

Enumerations in Swift allow you to group related values under a common type which enables us to write type-safe code. Common Questions — How to create Enums? How to add properties and methods to Enums? How to add custom initialisation for Enums? How to conform Enums to protocols? …

Closures are a block of code that can be passed around as used like other properties in your Swift code. We will look at how to create and use different forms of closures and also understand how they capture values from their surrounding context. Function as a Parameter Consider that you have an array…

Functions are used in every programming language. They are a block of code can perform a particular task, return back values after some computation, and also be passed around as arguments inside other functions. As usual, we will look at different aspects of functions through maximum code and minimum theory…

On which thread does your RxSwift chain execute its code? How do you perform costly operations without blocking the main thread? What happens if multiple threads try to update your subject at the same time? Let’s dive into answering these questions. You can find the source code for the project…

Switch statements in Swift are very powerful and will be covered extensively through playgrounds in this tutorial. We will also look at other control flow statements like for-in, while, if, guard, break and continue. As usual, the promise is minimum theory and maximum code. …