Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Programming Articles
Page 1944 of 2547
How to use delete Operator in TypeScript?
Have you ever tried to delete the object properties in TypeScript? Then you definitely came across the ‘delete’ operator. In TypeScript, the delete operator only allows deleting the undefined, optional, or any object properties. Also, it returns the boolean values according to whether it deletes the property or not. Below, we will understand the different use cases of the delete operator in TypeScript via different examples. Using the Delete Operator to Delete the Object Properties The main use of the delete operator is to delete the optional properties of an object. We can use the delete keyword as an operator ...
Read MoreHow to round the numbers in TypeScript?
In this tutorial, we will learn to round numbers in TypeScript. In TypeScript, the number data types can contain number values with decimal parts, and sometimes, we require to remove decimal part by rounding the number value. For example, if you want to show the progress of something in the application, and you are getting the decimal value of the progress, but you want to show the integer values only, then it is required to round the numbers. Here, we will learn 3 to 4 different methods to round the numbers. Using The Math.round() Method to Round a Number In ...
Read MoreWhat is the use of this keyword in TypeScript?
The “this” keyword is one of the most used keywords in TypeScript. For beginner TypeScript programmers, it’s complex to understand how this keyword works, but they will learn by the end of this tutorial. In this tutorial, we will learn to use this keyword in TypeScript. Syntax Users can follow the syntax below to use this keyword generally. Users can observe how we can access the variable or invoke the method using this keyword. this.var_name; this.method_name(); console.log(this.var_name); In TypeScript, this keyword refers to the global object if it’s not used inside any class or method. Even if we use ...
Read MoreHow to encode and decode URl in typescript?
The URI stands for the uniform resource identifier. The URL is one of the most common URIS. We use the URL (uniform resource locator) to find the web page located on the internet. The web pages also contain resources. In simple terms, URI is a string containing some characters, and we can identify the physical and logical resources on the web using the URI. The URL is a subset of the URI, which stores the document address on the web. Reasons to Encode URI The first question that arises in your mind after reading this tutorial's title is why we ...
Read MoreFor-In Statement with Object in TypeScript
In TypeScript, an object contains the properties and their values. We can use the for-in loop statement to iterate through every property of the objects and get its value. This tutorial will teach us to iterate through the object key-value pairs via different examples. Also, we will learn what kind of error we can get while iterating through the object properties and how to fix it quickly. Syntax Users can follow the syntax below to iterate through the iterable object properties using the for-in loop statement. For (var_name in object){ Statements or block to execute; } ...
Read MoreHow to find all leaders in an array in Java?
In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. As per the problem statement we have to find leaders in an array. An element is a leader if it is greater than all the elements to its right side. Let’s start! To Show You Some Instances Instance-1 Suppose the original array is {16, 17, 4, 3, 11, 14, 23, 2, 6, 10}. After finding leaders in an array the result will be − 23 10 Instance-2 Suppose the original array is {16, 17, 4, 3, 5, 6, 9, 1, ...
Read MoreCompare Two Different Files Line by Line in Java
In this article, we will compare two different text files which are saved in our system. We will check line by line of each text file, by comparing those we can identify the similarities and differences. Let’s see how we can do it by using the Java programming language. To Show You Some Instances Instance-1 Below figure depict two different text files with same content and hence output will be two files with same content. Instance-2 Below represents two files, say file1.txt and file2.txt with their content. file1.txt This is amazing. Java Language. file2.txt This is amazing. Python ...
Read MoreFind First and Last Word of a File Containing String in Java
As per the problem statement, we need to find the first and last word of the given String. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is String “Java is a well-known high-level, class-based object-oriented programming language that Sun Microsystems created and first distributed in 1995. Over 3 billion devices run Java, which is currently owned by Oracle” After printing the first and last word of this String i.e “Java” and “Oracle”. Instance-2 Suppose there is String “For the creation of their desktop, web, ...
Read MoreSeparate Odd and Even Elements into Two Separate Arrays in Java
In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. As per the problem statement we have to separate odd and even elements into two separate arrays and print the result. A number is said to be an even number if it is divisible by 2, else the number is an odd number. Note − The array must be an integer array. In this article, you will see how to separate even and odd numbers of an array into two different arrays by using Java programming language. Let’s start. To Show ...
Read MoreRead All the Emails Present in a File in Java
As per the problem statement we need to find all the Emails present in the file. Let’s explore the article to see how it can be done by using Java programming language. To Show You Some Instances Instance-1 Suppose there is given paragraph and it contains many different email ids and we want to extract all the mail id present in that paragraph. For e.g. − “I am a boy with email boy54@gmail.com. My friend’s email is friend78@gmail.com.”.” From the above paragraph, we need to take out the given two mail id in the paragraph i.e., boy54@gmail.com and friend78@gmail.com. Instance-2 ...
Read More