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How to convert a number to an absolute value in Swift?
To convert a number to its absolute value in Swift, you can use the abs(_:) function. In this article, you will see multiple examples of how to use the abs() function in the Swift language. Example 1 In this example, you will convert a simple negative number to an absolute value. Step 1 − Declare an input variable with an initial numeric value Step 2 − Convert the numeric input value into absolute value using the abs() function Step 3 − Assign the output absolute value to a new variable Step 4 − Print the input value to the ...
Read MoreArray extension to remove an object by value in Swift
To remove an object by value from an array in Swift, you can create an extension to the Array type. You can then call the function that takes the value to eliminate as a parameter. In this article, we will use the filter function to remove an object passing by value in the Swift language. Let's see some examples of how you can eliminate an object by value from an array Example 1: Remove an Object Using the Filter Function You can use the built-in filter method to create a new array without the matching value. Algorithm Step 1 ...
Read MoreHow to convert float to int in Swift?
In Swift, you can convert a float to an Int by using the Int() constructor. This will round the float value toward zero and return an integer value. Remember that, this constructor returns an optional value, so you have to use an optional binding approach to wrap the value safely. In this article, you will see some examples of how to use the Int() constructor. Using the Int() constructor You can use the Int() constructor to convert a Float to an Int. This method rounds the float value toward zero and returns an integer value. Step 1 − Declare ...
Read MoreHow to copy text to the clipboard/pasteboard with Swift?
In Swift, there is a dedicated class called UIPasteboard that allows you to copy text to the pasteboard. The same class allows you to paste the text. A UIPasteboard class is part of the UIKit framework that provides a general processor for copying and pasting information in iOS applications. In this class, data can be copied and pasted between apps using a shared instance. You can share various types of information such as text, media files, URLs, and colors. Copy and Paste the Text to the Clipboard Using the UIPasteboard class, you can copy and paste the text value in ...
Read MoreFinding the index of a character in a Swift string
In iOS app development, it is common to find the index of a character in a string. Based on the given index, you can perform different actions. In this article, you will see some examples of how to get the index of a character using the below functions − firstIndex(of:) firstIndex(where:) range(of:) All the above methods can be performed on a string value in different use cases. Using the FirstIndex() Method In Swift, you can use the firstIndex(of:) method to find the index of a character within a string. Here's an example −Example let inputString = "The quick ...
Read MoreHow to return the first 5 objects of an array in Swift?
In Swift to get the first N objects of an array, we can use the prefix function or Range operator. This prefix function is used to retrieve the prefix elements by passing the count limit. Also, you can use the range operator to get n number of elements from an array. Let's see some examples. In Swift, the prefix function returns an array containing the first n elements. Using the Prefix Function You can use the prefix function to get the first n elements of an array. Step 1 − Create an input array Step 2 − Call the ...
Read MoreGolang program to create a module with variables
In golang we can create a module with variable using const or var keywords, orelse we can even import the module . A module in Go is a group of packages. It helps in managing the distribution of the package. Algorithm Step 1 − Create a package main and declare fmt(format package) package in the program where main produces executable codes and fmt helps in formatting input and Output. Step 2 − In the first step, create three variables name, age and address using var keyword and assign these variables the desired values. Step 3 − Then, create a ...
Read MoreGolang program to create a class inside the module
In this article we will write a Golang program to create a class inside the module. There are no classes only structs are used in this program which will contain the data fields. A module is a collection of the packages having go.mod file at its root. This file determines the module’s directory. Using Child Struct In this Method, we will write a Golang program to create a class inside the module using child struct, a function createstruct will be created which will be called from another module to print child info. Algorithm Step 1 − Import the package ...
Read MoreGolang program to check a hash collection is empty or not
In this article, we will write a Go language programs to check a hash collection is empty or not. A hash collection is a data structure that contains key-value pairs in Go (Golang) and enables quick lookups, additions, and deletions. The value that corresponds to the key can be accessed by hashing the key into an index. Hash collections in the form of maps have built-in support in Go. Here, a map is a reference type that is declared by using the map keyword, followed by the key type and value type in the format. Syntax func make ...
Read MoreGolang program to remove all items from hash collection
In Golang we can use delete keyword or empy map to remove all the elements from hash collection. Hashmap is a data structure from hash collection. It is an implementation of hash table which takes O(1) constant time to execute. In this program we will remove all items from hash collection using two methods. Syntax func make ([] type, size, capacity) The make function in go language is used to create an array/map it accepts the type of variable to be created, its size and capacity as arguments. func range(variable) The range function is used to iterate over ...
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