Found 517 Articles for Swift

This tutorial will discuss how to write swift program to display prime numbers between two intervals. Prime numbers are those numbers that are greater than 1 and has exactly two factors that is 1 and the number itself. For example, 3 is the prime number because it has only two factors that are 1 and 3. Below is a demonstration of the same − Input Suppose our given input is − Lower Interval = 18 Upper Interval = 42 Output The desired output would be − Prime numbers between 18 to 42 are 19 23 29 31 37 41 ... Read More

This tutorial will discuss how to write swift program to convert double type variable to int. Swift support various datatypes and double and string are one of them. String is an ordered collection of characters. For example: “TutorialsPoint”, “Pinky”, etc. To create a string type variable, we use String keyword. Whereas Double is used to represent 64-bit floating point numbers. For example, 34.55656, 9.8283, etc. To create a double type variable, we use Double keyword. To convert double type variable into string we uses String() function. This function convert any data type into string. Syntax Following is the syntax − ... Read More

This tutorial will discuss how to write swift program to create a class and object. Swift language is also an object oriented language. So it fully support class and objects. Class A class is a blueprint for the objects. To add the functionality to the class we can define properties and methods. Here, the constants and variables present inside the class are known as the class property whereas a function present inside a class is known as a method. Just like other programming language, Swift classes also support inheritance, type casting, deinitializers, reference, etc. Syntax Following is the syntax to ... Read More

This tutorial will discuss how to write swift program to convert double type variable to int. Swift support various datatypes and double and integers are one of them. Double is used to represent 64-bit floating point numbers. For example, 34.55656, 9.8283, etc. To create a double type variable we use Double keyword. Whereas Integer represent numeric values like 2, 3, 45, 6, etc. And to create integer type variable we use Int keyword. To convert double type variable into int we uses Int() function. This function convert any data type into integer. Syntax Following is the syntax − Int(variableName) ... Read More

This tutorial will discuss how to write swift program to convert int type variable to double. Swift support various datatypes and double and integers are one of them. Double is used to represent 64-bit floating point numbers. For example, 34.55656, 9.8283, etc. To create a double type variable we use Double keyword. Whereas Integer represent numeric values like 2, 3, 45, 6, etc. And to create integer type variable we use Int keyword. To convert int type variable into double we uses Double() function. This function convert any data type into double. Syntax Following is the syntax − Double(variableName) ... Read More

This tutorial will discuss how to write swift program to convert int type variable to string. Swift support various datatypes and string and integers are one of them. String is an ordered collection of characters. For example: “TutorialsPoint”, “Pinky”, etc. To create a string-type variable we use String keyword. Whereas Integers represent numeric values like 2, 3, 45, 6, etc. And to create integer-type variables we use the Int keyword. To convert int type variable into string we uses String() function. This function convert any data type into string. Syntax Following is the syntax − String(variableName) Below is a ... Read More

This tutorial will discuss how to write swift program to print hollow right triangle star pattern. Star pattern is a sequence of “*” which is used to develop different patterns or shapes like pyramid, rectangle, cross, etc. These star patterns are generally used to understand or practice the program flow controls, also they are good for logical thinking. To create a hollow right triangle star pattern we can use any of the following methods Using nested for loop Using stride Function Below is a demonstration of the same − Input Suppose our given input is − Num = ... Read More

This tutorial will discuss how to write swift program to print X star pattern.Star pattern is a sequence of “*” which is used to develop different patterns or shapes like pyramid, rectangle, cross, etc. These star patterns are generally used to understand or practice the program flow controls, also they are good for logical thinking. To create a X star pattern we can use any of the following methods Using nested for loop Using stride Function Below is a demonstration of the same − Input Suppose our given input is − Num = 5 Output The desired ... Read More

In this tutorial, you are going to learn what changes have been released in Swift 4. Every time, Apple releases major versions with lots of improvements and additions to APIs. The new features introduced in Swift 4.0 include improved key paths for key-value coding, encoding and decoding, multi-line string literals, Strings are collections, improved dictionary functionality, one-sided ranges, and many other code enhancements. Encoding & Decoding In Swift 4.0, Apple introduced the Codable protocol to make encoding and decoding easy for developers. You can implement serialization and deserialization in your code using this protocol. You can encode and decode your ... Read More

Throughout this tutorial, you will learn about the higher-order functions available in Swift. You will find out what they are used for and how to use them. What are they? A higher-order function is a function that takes one or more functions as arguments or returns a function as its result. Below are the higher-order functions provided by the Swift language − forEach() map() compactMap() flatMap() filter() reduce() sort() sorted() All the higher-order functions are based on closure but don't worry you don't need to be a master of closure. They are easy to use and also reduce ... Read More