Before ECMAScript 6, JavaScript uses the var keyword for variable declaration. ECMAScript 6 added two new keywords to declare variables. They are let and const. So, there are three ways to declare variables in JavaScript after ES6: var, let, and…
Const in JavaScript is another keyword introduced in ES6 that is used to declare a read-only variable, meaning a variable whose value cannot be reassigned. In other words, if a variable is defined with a const keyword, its value cannot…
Here, we have compiled the most important ArrayList interview questions in Java with the best possible answers. These ArrayList interview questions are always asked in interviews from freshers and experienced. We have also covered some important coding-based questions that are…
Here, we have compiled the most important top 50+ Java collections framework interview questions with the best possible answers. These collections interview questions in Java can be asked from the freshers and experienced. We have also covered some important collections…
A computer system consists of two components: hardware and software. Computer hardware is the physical components of a computer that can be seen and touched by the user. It is one of the basic and necessary parts of the computer…
Let in JavaScript is a keyword that is used to declare a block-level variable rather than a global variable or variable in a function block. JavaScript let keyword follow the same definition as var, with one exception that it is…
Computer software is a set of programs that instruct the hardware to do its job. That’s why computer programs are also known as computer software or simply software. It is mainly divided into two sections: System software and Application software.…
Here, we have listed the most important interview questions based on final keyword in Java with the best possible answers. These final keyword interview questions in Java can be asked from freshers and experienced by the interviewer. We have also…
In the previous tutorial, we have learned to declare variables in JavaScript using var keyword and initialize a value to it. Now, we will understand the types of variables in JavaScript and their scopes. There are two types of variables…
