139
TUHow to Make Objects Callable
__invoke lets you call object as function. obj(). Clean.
#php #invoke #callable #howto
@turbolearnphp
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CO🚀 **Remove Duplicates in JavaScript — Beginner vs Experienced Developer**
Clean code is not just about working output — it’s about writing **readable, modern and optimized logic.**
Stop using long loops when powerful ES6 features can do the same job faster 💯
📌 Follow me @codebypc for daily JavaScript learning
#javascript #jsdeveloper #codingtips #webdevelopment #frontenddeveloper
@codebypc
141
COSplice () in JavaScript #javascript #softwareengineer #coding #webdeveloper #lerncoding
@code_with_vikas_2.0
820
REComment "React" and I'll send you the full lesson for this reel plus a complete guide on React keys and list rendering 🚀
100 todos. Delete one. React re-renders all 100. Your app crawls. Performance tanks. Users wait. All because of one missing attribute.
Open your browser DevTools. Check the console. If you're rendering lists without keys, you'll see this yellow warning: "Each child in a list should have a unique key prop." React is yelling at you. And it's right to yell.
Here's why keys matter.
When you render a list, React needs to track each item individually. Which one was added? Which one was removed? Which one changed? Without keys, React has no way to identify specific items. It sees "the list changed" and re-renders everything. Every single item. Even the ones that didn't change.
With keys, React knows exactly which item is which. Delete item 50? React finds key 50, removes just that one, leaves the other 99 untouched. Efficient. Fast. The way it should work.
Our todo app already has key equals i. The index. That's why your console stays clean. No warnings. React can track each item by its position number.
Quick tip: index as key works perfectly for simple static lists. But if your list reorders, filters, or items get inserted in the middle, index becomes unreliable. For those cases, use a unique ID from your data instead. For our basic todo app, index is fine.
Two things to never do.
First: no key at all. Console warning plus weird visual bugs. Items might flicker. Wrong items might update. Chaos.
Second: Math.random() as key. This is worse than no key. Random generates a new value every render. React sees new keys every time. Thinks every item is brand new. Re-renders everything constantly. Performance destroyed. Never do this.
Simple rule: stable, unique, predictable keys. Index for simple lists. IDs for complex ones.
This reel is just the trailer. Full lesson 👉 www.projectschool.dev
@reactlessons
13.2K
TEThe Ultimate If/Else Killer 🔪⚡️ Keep your logic clean!
Stop writing 6 lines of code when 1 line does the exact same job. 🚀
The "Junior" approach clutters your files and slows down readability.
The "Senior" approach uses the Ternary Operator (condition ? true : false). It’s fast, elegant, and an absolute must-know if you are writing React components. 👨💻✨
Why the Ternary wins:
✅ Instantly readable at a glance
✅ Perfect for assigning variables quickly
✅ Keeps your codebase looking professional
👇 Question for you:
Do you use ternary operators for everything now, or do you still prefer a classic if/else block for complex logic? Let’s debate in the comments! 🥊
👑 P.S. Want the exact DaVinci Resolve settings I use for these glowing code animations? I just dropped a quick behind-the-scenes breakdown in the Subscriber Hub! Hit the crown icon on my profile to join the community.
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#javascript #reactjs #webdevelopment #codingtips #cleancode #frontenddeveloper #softwareengineer #codinglife #juniorvssenior #100daysofcode #techvibes #programmer #javascriptdeveloper
@tecnical_vibes
120
FUBuild a Real Async Fetch Flow From Scratch
@fullstackflow03
3.9K
CO🚨 If you’re learning React and don’t know these Hooks… you’re already behind.
Most beginners try to memorize tutorials.
But real **React developers understand the core hooks that power almost every modern React app.
⚡ The hooks every developer must know: • useState → manage component state
• useEffect → handle API calls & side effects
• useContext → access global data
• useRef → work with DOM elements
• useMemo / useCallback → performance optimization
• useReducer → complex state management
💡 Pro tip:
If you master these hooks, you can understand 80% of React projects.
📌 Save this post so you always have the React Hooks cheat sheet.
Follow for more simple coding breakdowns 🚀
#reactjs #javascriptdeveloper #webdevelopment #codingtips #learncoding
@code_with_nishan
471
TEMost people stay stuck because they keep consuming content without building.
The difference is not talent.
It’s having a clear system.
I’ve simplified it into a beginner-friendly method that helps you: ✅ stop confusion
✅ start building projects
✅ learn faster with real practice
Comment SYSTEM and I’ll send it to you 📩
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#viral #reels #project #programmingtips #instagood
@tech_bypratham
462
_SJavaScript RegExp Classes and Meta Characters
This lesson explains how character classes match specific ranges, how shorthand meta characters target digits, words, and whitespace, and how patterns return matching results from text.
Follow for more web dev tips & tech explainers!
#script_ish #JavaScript #JS #RegExp #Regex #CharacterClasses #shortsfeed #TechTok #frontend #webdesign #webdevelopment #Programming #FrontendDevelopment #TechTutorial #JavaScriptTips #WebDevCommunity #JavaScriptForBeginners
@_script_ish
![#Glasseffect Reel by @devwithrishi - Modern JavaScript shortcuts you need to know:
✅ Optional Chaining (?.)
✅ Spread Operator ([...])
Save this for your next project! 💾
🚀 Follow for](https://image.pictame.com/img/656819107_2013757539498470_6297267774826701118_n.jpg?hash=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)
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DEModern JavaScript shortcuts you need to know:
✅ Optional Chaining (?.)
✅ Spread Operator ([...])
Save this for your next project! 💾
🚀 Follow for more JS Logic.
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#javascript #codingtips #webdev #frontend #learncode
@devwithrishi
133
FUSequential vs Parallel Fetch — Which One Should You Use?
@fullstackflow03
835
REComment "React" and I'll send you the full lesson for this reel plus a guide on immutability in React 🚀
Your state updates. Screen doesn't. You add a todo. Nothing appears. You check the console. Data is there. But the UI refuses to change. What is happening?
Welcome to the most common React mistake. Mutating state directly. Every beginner hits this wall. Let's break it down so you never suffer from it.
Here's what some beginners try. Instead of using setTodos properly, they write todos.push() with the new item. Looks logical. Push adds to arrays. That's JavaScript basics. But in React? This silently breaks everything.
Here's why. React needs to know when to re-render your component. It figures this out by comparing old state to new state. Different? Re-render. Same? Do nothing.
When you use push, you're modifying the existing array. Same array. Same reference in memory. React compares the old reference to the new reference. They're identical. Same object. React concludes nothing changed. Skips the re-render. Your UI stays frozen while your data silently updates underneath.
Invisible bug. Maddening to debug.
The fix: always create a new array. Never touch the original. That's why the spread operator exists. Three dots followed by the array name copies all items into a brand new array. Add your new item at the end. Pass this fresh array to setTodos.
React compares references. Old array versus new array. Different objects. Different references. React notices the change. Triggers a re-render. UI updates. Everything works.
Golden rule for React state: never modify, always create new. Arrays? Spread them into new arrays. Objects? Spread them into new objects. Strings and numbers are primitives, they're fine to replace directly. But arrays and objects must always be copied first.
Burn this into your brain. Push is forbidden. Spread is your friend.
This reel is just the trailer. Full lesson 👉 www.projectschool.dev
@reactlessons
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