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In this tutorial, we will learn how to pass an object as a parameter in a JavaScript function. One of JavaScript's data types is represented by the Object type. It is used to store keyed collections as well as more complex entities. The Object() function Object()or the object initializer / literal syntax can be used to create objects. Almost all JavaScript objects are instances of Object; a typical object inherits properties (including methods) from Object.prototype, though these properties may be shadowed (a.k.a. overridden). Following are the methods used to pass an object as a parameter in a JavaScript function. Using the ... Read More
A language is basically a mode of communication, because it is used to share information, ideas, and opinions. In computer systems, programming languages are used by the software developers or programmers to creates applications or software systems. A programming language provides a way of writing computer instructions that are used to perform a specific task. Examples of computer programming languages include C, C++, Java, Python, Ruby, Scala, Perl, C#, Groovy, Dart, etc. Based on the closeness of a programming language to the system hardware (mainly processor), computer programming languages are classified into two categories namely, high-level languages and low-level languages. ... Read More
A variable provides us with named storage that our programs can manipulate. Java provides three types of variables. Class variables − Class variables also known as static variables are declared with the static keyword in a class, but outside a method, constructor or a block. There would only be one copy of each class variable per class, regardless of how many objects are created from it. Instance variables − Instance variables are declared in a class, but outside a method. When space is allocated for an object in the heap, a slot for each instance variable value is created. ... Read More
In this article, we will discuss whether Can we code a website from Python and a step-by-step process to code a website in Python Can we code a website from python? Yes, you can build a website with Python - pretty easily, in fact. Although Python is a general-purpose programming language, it easily adapts itself to web development. Python web development is feasible due to "frameworks, " which are pre-built packages of Python code that serve as the foundation, or structure, for your website. Why should we create a website with Python? Generally, web development falls under the domain of ... Read More
Array in Java can be copied to another array using the following ways.Using variable assignment. This method has side effects as changes to the element of an array reflects on both the places. To prevent this side effect following are the better ways to copy the array elements.Create a new array of the same length and copy each element.Use the clone method of the array. Clone methods create a new array of the same size.Use System.arraycopy() method. The arraycopy() can be used to copy a subset of an array.ExampleCreate a java class named Tester.Tester.javaLive Demopublic class Tester { public ... Read More
Enter the array elements and then, arrange the numbers in descending order by using the swapping technique. Later on, with the help of an index location, try to print the second largest and the second smallest element in an array.An array is used to hold the group of common elements under one name.The array operations in C programming language are as follows −InsertDeleteSearchAlgorithmGiven below is an algorithm to find the second largest and the second smallest numbers in an array −Step 1 − Declare and read the number of elements.Step 2 − Declare and read the array size at runtime.Step ... Read More
The index of a particular element in an ArrayList can be obtained by using the method java.util.ArrayList.indexOf(). This method returns the index of the first occurrence of the element that is specified. If the element is not available in the ArrayList, then this method returns -1.A program that demonstrates this is given as follows.Example Live Demoimport java.util.ArrayList; import java.util.List; public class Demo { public static void main(String[] args) { List aList = new ArrayList(); aList.add("Orange"); aList.add("Apple"); aList.add("Peach"); aList.add("Guava"); aList.add("Mango"); ... Read More
In this tutorial, we will learn to check whether a JavaScript date is valid or not. Let’s understand why we need to validate the date in JavaScript by example. Suppose you have developed an application that takes some information in the submission form from the user. Users can make a mistake. What if they enter the wrong date in the input box? In such a case, developers need to validate the date. Here, we have three different methods to validate the date. Using the getTime() Method Using the isFinite() Method Using the Moment JS isValid() Method Using the ... Read More
Abstraction is a process of hiding the implementation details of a system from the user, and only the functional details will be available to the user end. On the other hand, Encapsulation is a method of wrapping up the data and code acting on the data into a single unit. Read this article to find out more about abstraction and encapsulation and how they are different from each other. What is Abstraction? Abstraction is defined as a process of hiding the implementation details of a system from the user. Thus, by using abstraction, we provided only the functionality of the ... Read More
To check if a number is prime or not, the code is as follows −Example Live DemoOutputIt is a prime numberA function named check_prime() is used to check if the number is prime or not. A number that needs to be checked for being prime is passed as a parameter to the function. The number is defined and this function is called by passing the number as parameter. Relevant message is displayed on the console.