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13 lis 2023 · Global, Local, and Block Scope: JavaScript offers different types of scope, each serving specific purposes. Global scope provides broad accessibility, local scope offers isolation, and block scope controls visibility within specific code blocks.
16 sty 2017 · Globally install: npm install <package> -g This package/module will find on where node is installed in your machine like /usr/local and can be usable everywhere. This package/module can't be accessible in using require("package") from code.
Block Scope. Before ES6 (2015), JavaScript variables had only Global Scope and Function Scope. ES6 introduced two important new JavaScript keywords: let and const. These two keywords provide Block Scope in JavaScript. Variables declared inside a { } block cannot be accessed from outside the block:
17 cze 2019 · The main difference between the local scope and block scope is that the block statements (e.g. if conditions or for loops), don't create a new scope. So the var keyword will not have an effect, because the variables are still in the same scope.
Learn how to install Visual Studio Code (VS Code) and Node.js to set up a local JavaScript development environment. This step-by-step tutorial will guide you through the installation...
18 sie 2022 · Node.js is a popular JavaScript runtime environment that helps you work with front-end JavaScript libraries such as React, Angular, and Vue. You can also build full-stack applications using Express and Nest frameworks. To build JavaScript applications, you will need a local Node environment.
Node.js can be installed in different ways. This post highlights the most common and convenient ones. Official packages for all the major platforms are available at https://nodejs.org/download/. One very convenient way to install Node.js is through a package manager.
