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Linked list is a linear data structure and all the nodes are connected to each other by storing the address of the next node. To find the nth node in a linked list means to get the value present at the nth node of the given linked list and that can be done by two methods that are iterative and recursive method. Example Given linked list: 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> null Node to find: 3 Output 3 Explanation: The value present at the third node is 3. Iterative Approach ... Read More
In Swift, you can open the phone settings page with the click of a button. To open, you can use the UIApplication.shared.open() method. In Swift, you are able to use predefined expressions to open specific screens outside of the app. This predefined expression will help you to open the settings screen from your app. This is a very useful feature in iOS. Here is the Main Function if let url = URL(string:UIApplication.openSettingsURLString) { if UIApplication.shared.canOpenURL(url) { UIApplication.shared.open(url, options: [:], completionHandler: nil) } } Here's How This Code ... Read More
In iOS, the UIStackView itself doesn't have a background color property. However, you can add a subview to the UIStackView and set its background color. In this example, we will add a stack view with some subviews. After that, we will see how to apply the background color to the stack view. UIStackView UIStackView is a container view that arranges its subviews horizontally or vertically. It automatically calculates the size and position of its subviews based on the stack view's axis, distribution, alignment, and spacing properties. You can add subviews to a UIStackView programmatically or in the Interface Builder. UIStackView ... Read More
In Swift, there are two ways to open a link. One approach is to use the UIApplication class to open a link in the Safari browser. Another approach is using the SafariServices framework in iOS. Let's see some examples of how to open a link based on these approaches. Approach 1: Using the UIApplication class Step 1 − Create a URL object for the link that you want to open. You can do this using the URL(string:) initializer. Step 2 − Create an instance of the UIApplication class. This class is responsible for managing the behavior of your app, ... Read More
To make a VStack fill the screen width in SwiftUI, you can use the frame modifier with a maxWidth parameter set to ".infinity". In this article, you will see different examples of VStack with full width. VStack VStack is a layout container in SwiftUI that arranges views vertically in a top-to-bottom fashion. The views are stacked on top of each other, with the first view added to the VStack at the top and subsequent views added below it. In SwiftUI, VStack is part of a family of layout containers that also includes HStack and ZStack. These containers provide a flexible ... Read More
To obscure a UITextField password in iOS, you can use the secureTextEntry property. This property allows you to hide the text entered into a text field by showing dots or asterisks instead of actual characters. In most iOS apps, we are required to obscure a UITextField to implement the password feature. This is easy to use the property. The isSecureTextEntry Property isSecureTextEntry is a property of the UITextField class in iOS that determines whether the text entered into the text field should be obscured, such as when entering a password. When isSecureTextEntry is set to true, the text entered into ... Read More
To create space at the beginning of a UITextField in Swift, you can set the leftView property of the text field to a UIView with the desired width. By default, UITextField does not provide a margin on the left or right side and this is the most common requirement to have space for a better user interface. In this article, you will see an example of how to add a left margin to the text field. In this example, we first create a view controller and then an email address text field. First, we will see the default text field ... Read More
Testing CSS properties is crucial in ensuring the quality of a web application. CSS properties determine how elements are displayed on a webpage, such as font size, color, and layout. Testing CSS properties can help detect bugs and ensure that the application looks and functions as intended. A tool known as a protractor provides developers with different methods to test CSS properties. Protractor is a popular end-to-end testing framework that uses WebDriver to automate interactions between a web application and a browser. It is widely used to test Angular applications, but can also be used to test other web applications. ... Read More
jQuery- a very popular JavaScript library that simplifies the process of HTML document manipulation, event handling, and animation. It consists of a set of functions that are used to traverse, manipulate, and modify HTML elements on the page. It is also cross-browser compatible and works seamlessly with most modern browsers. We always used forms on our websites whether in the form of the login page, contact us section, etc. There we always have to submit the form by clicking the button but how it can be possible to submit a form using the Enter key? Submitting a form is a ... Read More
In a distributed system, multiple machines are working together, and each machine may have its own clock. still, these clocks may not be accompanied with each other, and there's no single clock that can be used to order events globally. Logical clocks give a way to handle this by assigning each event a logical timestamp, which can be used to order events and establish reason between them, indeed if they do on different machines. In substance, logical clocks give a way to produce a virtual global timepiece that's consistent across all machines in a distributed system. Scalar Time Implementation There ... Read More