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1. Head to the official repository for Node.js distributio The link is right here:  https://github.com/nodesource/distributions. Head there and scroll down to find the correct command to copy and paste to install the version of Node you would like 2. Start N...

What is JavaScript It is a scripting language that is the core of websites, along with HTML and CSS, by learning scripting language you give interactivity to your web pages! Sliders, alerts, click interactions, popups, etc... Are all made possible with JavaS...

Script tag You can insert JavaScript program into HTML document using the <script> tags. You can write inline scripts directly between the tags or you can include external scripts. In order to include external script you would specify the src attribute for t...

Variables A named storage for storing data. There are couple way of creating a variable var keyword This is the relic of the past, back when JavaScript first came out it was the only way of declaring variables with the var keyword. Variable declared with ...

String Conversion You can call the String() function to explicit convert a value to a string String(false) -> "false" String(null) -> "null" Numeric Conversion Occurs when you use math functions and expressions console.log("6" / "2"); // Print out 3! Or...

Math Operators +, addition -, subtraction *, multiplication /, division %, remainder **, exponentiation String Operators The plus symbol if used with Strings will be for concatenation, you join two String together. If any of the operand is a String, th...

Ternary Operator let accessAllowed; if (age > 18) { accessedAllowed = true; } else { accessedAllowed = false; } // Can be simplified into just accessedAllowed = age > 18 ? true : false; || (OR) Returns true if one of the boolean value is tru...

While and for loop They are the same as in Python, C, and Java while (condition) { // Repeat certain code } for (begin; condition; step) { // Repeat certain code } break and continue both works the same way as in any other language. Switch state...

Function Declaration To declare a function follow the syntax: function function_name(parameter1, parameter2, ..., parameterN) { // Body of the function } The function can have access to outer variable, as well as modifying it. The outer variable is only...