Top Tweets for #Mern_stack
#LEC40 #MERN_STACK
▫️React+Vite = 🚀🔥
▫️Via First thought Principle.
▫️Is our website ready for production level ?
▫️What Is npm, package, lock, bundlers.
🔥Vite, Devdependencies vs dependencies.
▫️Patch, minor, major.
▫️npx vite, export, default.
Thanks @rohit_negi9 bhaiya 🔥
#LEC39 #MERN_STACK
▫️React JSX, Bable, React Components and Props.
▫️Via First thought Principle.
▫️JSX: We can create HTML type elements in J.S.
▫️Components: Just Functions.
▫️Props: Multiple Parameter which can take all type of objects.
Thanks @rohit_negi9 bhaiya 🔥
#LEC38 #MERN_STACK
▫️Intro to React...
▫️Let's buildup react by a problem statement.
▫️Creating 1 element by js, 2...50 not good.
▫️So we created a function which increases Reusability.
▫️React how UI looks, REACTDOM dom manipulation, rendering.
Thanks @rohit_negi9 bhaiya 🔥
#DAY37 #MERN_STACK
▫️strict vs non strict mode.
▫️this keyword deep dived...
▫️Invoked by whom this points to it.
▫️Reusable via this.
▫️Appl, call, bind.
▫️class new keyword whole detail
▫️Arrow doesn't have this keyword.
▫️Lexical Environment, DOM.
Thanks @rohit_negi9 bhaiya 🔥
#DAY36 #MERN_STACK
▫️Prototype and Classes In Javascript.
▫️hasOwnProperty kha se aaya, jbki khi define hi nhi kra..
▫️__proto__ use, link Inheritance.
▫️Behind the scene, deep dived.
▫️Same for Arrays, functions, classes it's own Prototype
▫️Classes
Thanks @rohit_negi9 bhaiya 🔥
#DAY35 #MERN_STACK
▫️Async Await In Javascript.
▫️normally call a function then using async will return a promise.
▫️But problem arrise ij fetch if it take time so it will give error.
▫️We use await till no next task be executed
▫️Project, try catch.
Thanks @rohit_negi9 bhaiya 🔥
#DAY34 #MERN_STACK
Bhaiya take care of ur health🙂
▫️Promise in JavaScript.
▫️Fetch a Asynchronous task.
▫️Promise{<Pending>}, Chaining?
▫️JSON vs JS.
▫️JSON format, why string, in object form?
▫️When reject or fulfilled work ?
▫️Creation or Promise.
Thanks @rohit_negi9 bhaiya 🔥
#DAY33 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️JavaScript Call Back Hell 💀
▫️Simulator of Zomato Application.
▫️Calling function, call back.
▫️Callback disadvantage: Readability Less, Complex to understand.
▫️Feels uncomfortable but try to do that.
Thanks @rohit_negi9 bhaiya 🔥
#DAY32 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️JavaScript Single Threaded but Asynchronous, Event Loop ??
▫️Single Threaded and synchronous why ?
▫️Twist: It's Asynchronous Behavior.
▫️Not behaviour, it's browser.
▫️Web APIs, Callback, microtask queue
Thanks @rohit_negi9 bhaiya 🔥
#DAY31 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️10 real world projects in J.S
▫️Random Quote Generator.
▫️Background color generator.
▫️Love calculator.
▫️Income tax calculator.
▫️Digital clock.
▫️Timer.
▫️Astrology.
▫️Clicker.
▫️Todo list.
▫️Quiz form.
Thanks @rohit_negi9 bhaiya 🔥
#DAY30 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️Events in J.S
▫️Events, Events Listner, Action.
▫️Methods for event listener.
▫️Bubbling it's internal.
👉Best part Capturing, Target, Bubbling phase.
❔️why third argument.
Remove listeners,Excited 4 2day
Thanks @rohit_negi9 bhaiya 🔥
#DAY29 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️CRUD operations on DOM
▫️Linking External Script.
▫️Real World Problem solution and it's optimized Approach discussed.
▫️fragment.
▫️Why not to use innerHTML..Data breach.
💀Nothing is left to say.
Thanks @rohit_negi9 bhaiya 🔥
#DAY28 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️What is DOM ?
▫️To conver HTML elements to object so that i can manipulate it.
▫️document, selection,inner html, text, content difference.
▫️Query Selector, array, nofelist.
💀Nothing is left to say.
Thanks @rohit_negi9 bhaiya 🔥
#DAY27 #MERN_STACK
Due to cold unable to take lectures but now I'm good to go.
Swaad Aagya Bhaiya✨️
▫️J.S Map, filter, reduce, set.
▫️forEach, filter (internal working), map.
▫️D.S set, map.
▫️CRUD operations on them.
💀Nothing is left to say.
Thanks @rohit_negi9 bhaiya 🔥❤️
#DAY26 #MERN_STACK
Due to cold unable to take lectures but now I'm good to go.
Swaad Aagya Bhaiya✨️
▫️Closure, Scope and higher order of functions...
▫️Global, inblock, Functional.
▫️Closure Indepth internal working.
▫️Real World use case, Banking.
Thanks @rohit_negi9 bhaiya 🔥
#DAY25 #MERN_STACK
Swaad Aagya Bhaiya✨️
▫️How J.S runs code and Hoisting
▫️It runs and create execution context then in two phases one is memory allocation and other is execution phase.
▫️Indepth internal working.
▫️Console.log(); not a part of js
Thanks @rohit_negi9 bhaiya 🔥
#DAY24 #MERN_STACK
Swaad Aagya Bhaiya 🤌✨️
▫️J.S Functions
▫️4 Ways to create Functions
▫️direct, via rest Operator, variable holding, arrow Function, IIFE.
▫️Difference between rest and spread.
▫️Callback Functions.
💀Kuch nhi bcha h bolne ko ab.
Thanks @rohit_negi9 bhaiya 🔥
#DAY23 #MERN_STACK
Swaad Aagya Bhaiya 🤌✨️
▫️J.S Objects
▫️What Is Object, key value access.
▫️CRUD operation, Accessing keys values, entries, Loops, functions, Nested Objects.
▫️In J.S how array and Objects stored.
💀Kuch nhi bcha h bolne ko ab.
Thanks @rohit_negi9 bhaiya 🔥
#DAY22 #MERN_STACK
Swaad Aagya Bhaiya 🤌✨️
▫️J.S Arrays
▫️What Is Array, Creating, Performing different types of operations.
▫️slice, splice, join, sort, iterations via loop.
▫️In J.S array is not array it's object.
💀Kuch nhi bcha h bolne ko ab.
Thanks @rohit_negi9 bhaiya 🔥
📌 Day-22 | JavaScript (Day-7)
Learned array methods:
push, pop, shift, unshift
Sorting: ascending/descending
Explored flat() for nested arrays
Today Mind blowing concept👇👇:
🔑 Arrays in JS are not array its actually objects 🤯
#JavaScript
#Mern_Stack
#Coder_Army
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