Introduction to Python: A Beginner’s Guide Python is a high-level programming language. It is widely used for web development, data analysis, and many other applications. It was first created by Guido van Rossum in 1991. In this blog, we will provide you with a brief overview of Python and its features, as well as some basic concepts and syntax to get you started on your coding journey. Features of Python Python has many features that make it a popular choice among programmers, including: Easy to Learn Interpreted Language Object-Oriented Cross-Platform Large Standard Library What can Python do? Python is a…
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Python Tutorial Welcome to this Python tutorial! In this tutorial, we will cover the basics of Python programming language. Python is a famous general-purpose interpreted, object-oriented, multiprocessing, and high-level programming language. Python is also a versatile language that can be used for a wide range of applications such as web development, data analysis, machine learning, and automation. Understanding by Examples Try out this example and see the result. Example Careers with Python Python is a popular programming language used by professionals in various industries. Below are some careers that involve the use of Python: Software Developer: Python is one of…
What is NPM? NPM full form is Node Package Manager that is a command line tool. The NPM tool installs, updates or uninstalls Node.js bundle in your application. Node Package Manager provides two primary functionalities − Online repository for open-source Node.js packages. The node community around the world install Node.js modules and publishes them as packages in this repository. www.npmjs.com hosts thousands of free packages, you can download and use. Download a Package You can download package very easily. Firstly open the command line or terminal and tell NPM to download the package you want. Installing npm on linux Type…
What is a Module in Node.js? You can consider Node.js modules to be the exact as JavaScript libraries. The bunch of functions are collected in single or multiple JavaScript files which you can include in your application. Using require() method to include Node File System (fs) module: The Node fs module is responsible for all the asynchronous or synchronous file I/O procedures. Common use for the File System module: Read files Delete files Rename files Create files Update files Read Files You can use the fs.readFile() method to read files asynchronously. Example: Read File Let us assume we have the…
Node.js Console Node.js comes with a virtual atmosphere which is known as REPL. REPL is the Read-Eval-Print-Loop. It is a fast and effortless way to execute an easy Node.js/JavaScript program. To launch the REPL, open the command prompt (in Windows) or terminal and write the node as indicated downward. It will replace the prompt to > in the terminal. You can now execute any Node.js or JavaScript expression in REPL. For example 50 + 10 will show 60 instantly in new line. The + operator also joins strings as in browser’s JavaScript. REPL commands There are given below some important…
Do you know WordPress is a great and popular CMS that lots of the internet’s top websites are based on it? Yes in the recently published report on WordPress, it was revealed that 60% of active domains created in the U.S. are running WordPress. If your website is powered by WordPress you may be thinking about which plugin to install and which to leave. I have five years of experience in WordPress development and has helped hundreds of client launch WordPress based website, it is my daily job to help them decide which plugins to use and which to avoid.…
JavaScript operators JavaScript operators are symbols that are applied to execute operations on operands. Example In this example, we assign values to variables a, b, and c. Add them together: Output JavaScript Operators Example 17 Arithmetic operators Arithmetic operators are used to performing arithmetic calculations on numbers, whether these numbers are literals or variables. Arithmetic OperatorDescription+Addition–Subtraction*Multiplication/Division++Increment—Decrement%Remainder – This operator returns the reminder of a division: 10 % 3 = 1 Examples of Arithmetic operators Addition Subtraction Multiplication Division Remainder Assignment operators Assignment operators assign a value to a JavaScript variable. The most commonly used operator is the equal operator =…
JavaScript comments Developers use JavaScript comments to explain their JavaScript code not only to themselves but also to other fellow developers. It is a good practice to write comments as you code. With the help of JavaScript comments, we can be preventing execution when testing alternative code. Example: Commenting all code Single line comments Single line comments start with //. Example Multi-line comments Multi-line comments start with /* and end with */. Example: 1 Example: 2
JavaScript Variables Learn about naming conventions and data types and how to declare and assign values to JavaScript variables. There are four 4 Ways to Declare a JavaScript Variable: Using var Using let Using const Using nothing What are Variables? JavaScript variables store data. Therefore you can apply them to temporarily save the values your program needs to operate. Think of them as little containers or boxes that hold a specific piece of data that you specify. Example In the above example, a, b, and c, are three variables and declared these variables with the var keyword. Declaring variables To create a variable…
JavaScript basics In this lesson, we examine some basic JavaScript concepts such as how to add JavaScript expressions, semicolons, and more. A JavaScript program is a list of instructions that you give to the computer for execution. If you tell the computer “add two plus four and print the result” the computer will calculate 2 + 4 and print 6. The browser’s interpreter is in charge of “executing” your JavaScript code. Web browsers have what is called a JavaScript interpreter. This interpreter will read your JavaScript statements and then interpret and execute them one line at a time. Semicolons Use…