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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:
4 mar 2017 · Using CDN files - especially for widely used libraries like jQuery (or any other big library) - means they will receive a cached copy of the file from a physical location near them. In most cases, using a popular CDN for big libraries means the user has also downloaded that resource before - from someone else's site - so the file will be cached ...
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.
I wanted to know how does a JS file fetched from a CDN differs from a local file running on the browser? Is it like a local JS file but on a different server? And does it resides as a JS file in the browser or in some other way?
9 wrz 2019 · Examples of CSS-in-JS Libraries. Although every CSS-in-JS library serves the same purpose (i.e. bundling components with CSS), each comes with slightly different features and syntax. Let’s see how the most popular CSS-in-JS libraries stack up to each other. Framework-Specific vs. Framework-Agnostic
1 wrz 2023 · With vanilla-extract, you can write locally scoped styles and variables in JavaScript or Typescript and generate CSS files at build time. It also offers an optional API for dynamically theming your application.
20 paź 2021 · CSS-in-JS can be a worthwhile tool for many projects, even from the perspective of someone who is a die-hard SCSS user. Let’s go through an overview of the CSS-in-JS and the pros and cons of using it instead of Sass.
