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Javascript asynchronous programming uses a promise object which does not block the execution of the current flow but informs the compiler that there is something that is not completed yet, and whenever it completes it returns a signal to the system. There are mainly two possibilities. Either the promise object will complete successfully, or it will stop by returning an exception. To handle exceptions coming from promise objects the catch() methods are used. In try-catch methods also we can use another block named ‘finally’. This will execute no matter what is done previously. For promises also we can use the ... Read More
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 More
The Globally Unique Identifier (GUID) or (Universally Unique Identifier) is a 16-byte or 128- bit binary value that is used as an identifier standard for software construction. This 128-bit number is represented in a human-readable format by using the canonical format of hexadecimal strings. One example is like: de305d84-75c4-431d-acc2-eb6b0e5f6014. In this article, we shall cover how we can use javascript functionality to generate GUID or UUID. There are a few different methods, covered one by one: By using random number generation Example function generate_uuidv4() { return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { ... Read More
Having no experience and starting a digital marketing business from scratch can be difficult, but it is not impossible. There are many steps involved in establishing a successful digital marketing business, and nothing will stop you from doing it. Since the 1990s, digital marketing has been around. Despite the widespread attention it has received, many people still do not understand what it is. For instance, some believe that digital marketing agencies are mainly just posting ads on Google and Facebook. Others think that it includes both organic and paid ads. Digital marketing was initially easy to implement, as it mainly ... Read More
Swift provides a class called JSONSerialization to convert a dictionary to a JSON string. We will use the two steps to convert a dictionary to a JSON string in the Swift language. Here are the steps − Convert a dictionary into JSON data format using JSONSerialization.data() method which takes a dictionary object as a parameter along with the options. Now using the String(data:encoding:) constructor, convert the JSON data into JSON string format. In this article, you will see some examples of how to convert a dictionary into a JSON string. JSONSerialization The Foundation framework for iOS and ... Read More
One of the most effective ways to improve sales is through digital marketing. During the pandemic, digital marketing was able to grow by 72%. However, one of the biggest challenges that businesses face when it comes to using digital marketing is finding the right audience and the right content. In today's world, there are so many new innovations that it can be hard to keep up with them. Despite the evolution of digital marketing, businesses still need to rely on traditional methods to reach their target customers. This is why it is important that you implement a comprehensive digital marketing ... Read More
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 More
Abstract Characters are used in source code, command lines, and the majority of computer interaction. The majority of characters, on the other hand, are not represented by keys on a standard keyboard, and many are not even readable. Another category of characters is complicated control characters. We'll talk about character escape in Bash in this tutorial. We'll start off by briefly outlining how computers represent characters. First, we examine the various string types in Bash. The character escape in only Bash is then thoroughly described. Note − Linux commands are case-sensitive. Strings in Bash Since a key does not represent ... Read More
The rise of digital technology has drastically changed the way people shop. In addition to making purchases easier, people also prefer to receive their goods and services at their doorstep rather than waiting in line for hours. This has resulted in fierce competition within the industry, with many companies focusing on providing the best possible customer experience. Traditional marketing methods have typically been very inefficient for businesses, as they can't keep track of their growth. With the help of new marketing techniques, they can now focus on their main target market and achieve their goals. One of the most effective ... Read More
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 More