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Iterables

NodeJs/JavaScript JavaScript Roadmap Journey

Iterables A generalization of arrays, it allows us to make any object iterable in the context of...

Updated 2 years ago by Tamarine

Arrays and methods

NodeJs/JavaScript JavaScript Roadmap Journey

Array Two ways of creating empty array let arr = new Array(); let arr = []; Create an array w...

Updated 2 years ago by Tamarine

Symbol Type

NodeJs/JavaScript JavaScript Roadmap Journey

Symbols In JavaScript there is two primitive types that can be used as object property key St...

Updated 2 years ago by Tamarine

Optional chaining

NodeJs/JavaScript JavaScript Roadmap Journey

Optional chaining There is this problem that if the object that you are accessing might or might...

Updated 2 years ago by Tamarine

Constructor and "new" operator

NodeJs/JavaScript JavaScript Roadmap Journey

Constructor function Function that is meant to be a constructor are named with capital letter fi...

Updated 2 years ago by Tamarine

Code structure and data types

NodeJs/JavaScript JavaScript Roadmap Journey

Script tag You can insert JavaScript program into HTML document using the <script> tags. You ca...

Updated 2 years ago by Tamarine

Garbage collection

NodeJs/JavaScript JavaScript Roadmap Journey

Reachability In JavaScript garbage collection is implemented through something called reachabili...

Updated 2 years ago by Tamarine

Functions, function expression, arrow function

NodeJs/JavaScript JavaScript Roadmap Journey

Function Declaration To declare a function follow the syntax: function function_name(parameter1...

Updated 2 years ago by Tamarine

Loops and switch statement

NodeJs/JavaScript JavaScript Roadmap Journey

While and for loop They are the same as in Python, C, and Java while (condition) { // Repeat ...

Updated 2 years ago by Tamarine

Introduction

NodeJs/JavaScript JavaScript Roadmap Journey

What is JavaScript It is a scripting language that is the core of websites, along with HTML and ...

Updated 2 years ago by Tamarine

Variables

NodeJs/JavaScript JavaScript Roadmap Journey

Variables A named storage for storing data. There are couple way of creating a variable var ke...

Updated 2 years ago by Tamarine

Type Conversion

NodeJs/JavaScript JavaScript Roadmap Journey

String Conversion You can call the String() function to explicit convert a value to a string St...

Updated 2 years ago by Tamarine

Conditional and Logical Operator

NodeJs/JavaScript JavaScript Roadmap Journey

Ternary Operator let accessAllowed; if (age > 18) { accessedAllowed = true; } else { ...

Updated 2 years ago by Tamarine

How To Install NodeJs + NPM (Linux)

NodeJs/JavaScript

1. Head to the official repository for Node.js distributio The link is right here:  https://gith...

Updated 2 years ago by Tamarine

Virtual File System

Linux Module/Kernel Programming

Superblock Superblock is metadata about the filesystem. It define the name of the file system (e...

Updated 2 years ago by Tamarine

Diff Command Line Tool

Bash Shell

https://www.computerhope.com/unix/udiff.htm#How%20diff%20Works

Updated 2 years ago by Tamarine

Disk Usage utility

Bash Shell

df - File System Disk Usage The command df reports the total disk usage on the mounted file syst...

Updated 2 years ago by Tamarine

Echo Clear Previous Line

Bash Shell

The escape string \033[0K will clear the entire line, this string are cross-platform so it will w...

Updated 2 years ago by Tamarine

Backslash Escapes

Bash Shell

See link for valid information. This page is outdated. When you are working with special charact...

Updated 2 years ago by Tamarine

find glob expansion

Bash Shell

When using regular expression in find, you have to quote the name parameter to prevent glob expan...

Updated 2 years ago by Tamarine