JavaScript isNaN() Method Tutorial

JavaScript isNaN() Method Tutorial

JavaScript provides the isNaN() method in order to check whether a given value or variable is a number or not. NaN is the short form the “Not a Number” and checks for negative cases. If the given value or variable is not a number it will return true, if a number it will return false. … Read more

How To Rename File In Python?

How To Rename File In Python?

Files are an important part of computer usage. Files are used to store different types of data like text, image, tabular data, voice, etc. Every file has a name in order to distinguish from other files and able to select for different operations. We can set the file names during file creation but also change … Read more

getchar() Function In C

getchar() Function In C

The C programming language provides different methods and functions in order to get input. This input can be real-time or batch. Also, the input can be provided from different channels like standard input, file, socket, etc. In this tutorial, we will learn how to get input with the getchar() function. getchar() Function Syntax Well, the … Read more

Substring In C Tutorial

Substring In C Tutorial

Substring is an operation where some part of the given string is extracted. Most of the popular and recent programming languages provide a function for substring operations. C Programming language provides different methods and functions in order to implement substring operations. What Is a Substring Operation? Substring is used to return some parts of the … Read more

How To Write A File In PHP?

How To Write A File In PHP?

PHP programming language provides different functions in order to write files. A file is a container that contains and stores data in different formats like simple ASCII tet, binary data, XML data, etc. Even databases provide more structured and easy to use data storage functionality files can provide more simple, fast, and basic data storage … Read more

Python Infinity (Infinite Number) Tutorial

Python Infinity (Infinite Number) Tutorial

Infinity is a term used to describe the uncountable size, length in life, and programming languages. Programming languages provide from simple to complex data structures in order to represent numbers like integer, decimal, float, double, positive, negative, etc. but infinity or an infinite number is a special case. In this tutorial, we will examine the … Read more

How To Restart Nginx Web Server?

How To Restart Nginx Web Server?

Nginx is a popular web server that is an alternative to the other web servers like Apache, IIS, etc. Nginx is a free open-source, high-performance initiative web and reverses proxy server. Nginx provides better performance against Apache and IIS. Most of the Linux system administrators deal with the Nginx web server in daily operations. In … Read more

PHP header() Function Tutorial

PHP header() Function Tutorial

HTTP protocol uses the HTTP headers in order to provide information to the user browser. HTTP headers may provide information like content type, response code, timezone information, caching, etc. HTTP header is created by the web server and as a dynamic web programming language PHP provides header() function in order to add, change the HTTP … Read more

How To Get Help In Windows 10?

How To Get Help In Windows 10?

Windows 10 is the most popular desktop end-user operating system. A lot of users from different expertise levels use Windows 10 for different reasons. Windows 10 is the latest version of the Microsoft Windows operating system series which is developed for 40 years. It gained a lot of popularity, features, and reliability throughout 40 years … Read more

How To Change User Password In Linux?

How To Change User Password In Linux?

Passwords are an important part of our daily life even we are not a technical or computer guy. Username and password are used to protect Linux systems and services by requiring authentication to access. Most of the Linux systems and distributions like Debian, Ubuntu, CentOS, etc. use the password for user authentication and authorization. Changing … Read more