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1. www.freecodecamp.org › news › scope-in-javascript-global-vs-local-vs-block-scopeScope in JavaScript – Global vs Local vs Block Scope Explained

   www.freecodecamp.org › news › scope-in-javascript-global-vs-local-vs-block-scope

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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.

2. www.w3schools.com › js › js_scopeJavaScript Scope - W3Schools

   www.w3schools.com › js › js_scope

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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:

3. stackoverflow.com › questions › 371875Local file access with JavaScript - Stack Overflow

   stackoverflow.com › questions › 371875

   17 gru 2008 · The main idea of the solution is: the JavaScript code cannot access the file by having its local URL. But it can use the file by having its DataURL: so if the user browses a file and opens it, JavaScript should get the "DataURL" directly from HTML instead of getting "URL".

4. www.geeksforgeeks.org › global-and-local-variables-in-javascriptGlobal and Local variables in JavaScript - GeeksforGeeks

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   20 sie 2024 · In JavaScript, understanding the difference between global and local variables is important for writing clean, maintainable, and error-free code. Variables can be declared with different scopes, affecting where and how they can be accessed.

5. www.freecodecamp.org › news › use-local-storage-in-modern-applicationsHow to Use LocalStorage in JavaScript - freeCodeCamp.org

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   20 lut 2024 · The key differences between the two are the lifespan of the stored data and their scope. Data in local storage remains available even when the tab/browser is closed. But closing the tab/browser clears any data stored in session storage. Also, data in local storage is accessible across multiple browser tabs and windows.

6. dev.to › stevealila › 3-typical-ways-to-store-data-using-javascript-1m1f3 Typical Ways to Store Data Using JavaScript - DEV Community

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   23 cze 2021 · In this guide, we will explore the three typical ways to store data using JavaScript. These are: Static storage; Local storage; Using the browser database; We will learn the traits of each storage, how it works, and its disadvantages. To grasp the concepts, we will create a simple to-do application. We shall not use any framework or library.

7. jsdevspace.substack.com › p › how-to-handle-files-in-javascriptHow to Handle Files in JavaScript: Reading, Uploading, and...

   jsdevspace.substack.com › p › how-to-handle-files-in-javascript

   14 lis 2024 · This article provides a comprehensive guide to file handling in JavaScript. It covers file selection, retrieving file properties, and uploading files to a server. Key concepts such as the relationship between File and Blob, as well as using the FileReader API for reading files, are explained. You’ll learn to convert files into data URLs or ...