--- title: "blessie y (@7022315721) | Hashnode" description: "blessie y (@7022315721) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@7022315721" --- @7022315721 # blessie y @7022315721 · Joined April 2023 ### [Different b/w Real DOM & React DOM](https://blessie-blog.hashnode.dev/different-bw-real-dom-react-dom?utm_source=hashnode&utm_medium=feed) What is DOM? The( Document Object Model), represents the web page as a tree structure. Any piece of HTML that we write is added as a node, to this tree. With JavaScript, we can manipulate any of these nodes (HTML elements) and update their styles, an... 2 min read · [blessie-blog.hashnode.dev](https://blessie-blog.hashnode.dev/different-bw-real-dom-react-dom?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/different-bw-real-dom-react-dom/6474569d4a80e3ea9538999a) [May 29, 2023](https://hashnode.com/posts/different-bw-real-dom-react-dom/6474569d4a80e3ea9538999a) ### [Destructuring in JavaScript](https://blessie-blog.hashnode.dev/destructuring-in-javascript?utm_source=hashnode&utm_medium=feed) The destructuring assignment syntax is a JS expression that makes it possible to unpack values from arrays, or properties from objects, into distinct variables. Object Destructuring let's see with examples: function index(){ function ... 2 min read · [blessie-blog.hashnode.dev](https://blessie-blog.hashnode.dev/destructuring-in-javascript?utm_source=hashnode&utm_medium=feed) [May 23, 2023](https://hashnode.com/posts/destructuring-in-javascript/646c6ad4edd2b23c2f337029) ### [Closures in JavaScript](https://blessie-blog.hashnode.dev/closures-in-javascript?utm_source=hashnode&utm_medium=feed) The closure is a collection of functions with a lexical environment. Meaning of Lexical Environment/ Scoping The scope has the ability of function scope to access the variables from the parent scope. Here have some examples: First example: let a = 10... 1 min read · [blessie-blog.hashnode.dev](https://blessie-blog.hashnode.dev/closures-in-javascript?utm_source=hashnode&utm_medium=feed) [May 20, 2023](https://hashnode.com/posts/closures-in-javascript/6468b09ccd2727d8bca35d5e) ### [JavaScript Hoisting](https://blessie-blog.hashnode.dev/javascript-hoisting?utm_source=hashnode&utm_medium=feed) In JS any variables and functions trying to access before the declaration is known as Hoisting. Let's see the First example: 1 var num = 80 2 3 function declaration (){ 4 console.log("creative world"); 5 } 6 7 dec... 1 min read · [blessie-blog.hashnode.dev](https://blessie-blog.hashnode.dev/javascript-hoisting?utm_source=hashnode&utm_medium=feed) [May 19, 2023](https://hashnode.com/posts/javascript-hoisting/6467219761102ba7e3b525f6) ### [JavaScript Execution Context](https://blessie-blog.hashnode.dev/javascript-execution-context?utm_source=hashnode&utm_medium=feed) When the JavaScript code started to run then the Global Execution Context is created. Types of Phases in Execution Context The Execution context is created in two phases: Memory allocation Phase Code Execution phase Let's start with the following... 2 min read · [blessie-blog.hashnode.dev](https://blessie-blog.hashnode.dev/javascript-execution-context?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/javascript-execution-context/6465d82081679c528bb2c1d3) [May 18, 2023](https://hashnode.com/posts/javascript-execution-context/6465d82081679c528bb2c1d3)