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SR¿Qué es una promise en JavaScript?
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#srspes #html #javascript #desarrolloweb
@srspess
#Javascript Promise States
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LO🚀 JavaScript Promises Explained in 60 Seconds! 🤯
Ever wondered how JavaScript handles asynchronous operations? 🤔
A Promise ensures that a task will either complete successfully or fail in the future!
🔹 Three States of a Promise:
✅ Pending – Waiting for the result...
✅ Fulfilled – Task completed successfully! 🎉
✅ Rejected – Uh-oh, something went wrong! ❌
🧐 Still confused? Drop your questions in the comments! 👇
🎯 Follow @LostInDev for more JavaScript tricks! 🚀
#JavaScript #JS #WebDevelopment #Coding #Programming #Frontend #AsyncJS #Promises #JSDeveloper #CodeNewbie #Developer #Tech #LearnToCode #100DaysOfCode #WomenWhoCode #TechCommunity #FullStack #lostindev
@lostindev003
4.9K
COWhat is a Promise in JavaScript?
A Promise = An object that represents a value that will exist later.
Think of it like ordering food 🍔
You haven’t received it yet, but you know it’s either coming… or not.
Why Promises exist:
• Many tasks take time (APIs, files, databases)
• JavaScript doesn’t wait by default
• Promises help manage future results
How a Promise works:
A Promise has 3 states:
1. Pending – still working
2. Fulfilled – success, data is ready
3. Rejected – something went wrong
Why Promises matter:
• Prevents blocking the app
• Makes async logic predictable
• Forms the foundation of async/await
Real-world examples:
• Fetching data from an API
• Uploading files
• Reading data from a database
Best practices:
• Always handle errors with .catch()
• Avoid deeply nested .then() chains
• Prefer async/await for readability
Follow @cole_ruche for more dev breakdowns like this
#javascript #webdevelopment #softwareengineering #backenddevelopment
@cole_ruche
15.9K
BUPromise in javascript
@bugthecode
19.0K
SP✅ Promises and Async Await in JavaScript 🔥
#javascript #javascript_love #javascriptdeveloper #reactjs #reactjsdevelopment #angularjs
@specsycoder
232.5K
CO1 min mein JavaScript promise sikhte hai 🤯
#javascript #promises #coding #programming #webdevelopment #frontenddevelopment #softwaredevelopment #learntocode #developer #webdev #techskills #codingtips #jsbasics #quicklearning #codingchallenge
✨ Follow for quick and easy JavaScript lessons! 💡 Share with friends who want to master promises in no time! 👩💻👨💻 #sharethecode #followforupdates #reels
@codebools
2.7K
COPromises in JS!
#javascript #javascriptlearning #tech #webdevelopment #webdeveloper #coding
@codeinsiderhub
2.0K
TE⭐ Day 43/50 — JavaScript Promise Chaining Trick! 🤯
Aaj ka question bahut logon ko confuse karega:
Promise.reject("X")
.catch(e => e + "Y") // "XY"
.catch(e => e + "Z")
.then(console.log);
Most developers guess “XYZ”,
but JavaScript says… “XY” 😅
✔ WHY?
Promise.reject("X") → goes directly to the first .catch()
First catch returns "XY"
Since this catch resolved, the second .catch() skips
.then() finally prints "XY" 🎉
This is one of the cleanest examples of how Promise chains switch between fulfilled & rejected states.
🔥 Key Takeaway
👉 A resolved catch behaves like a .then()
👉 Next .catch won’t run unless you throw again
👉 Promise flow = state machine, not a simple linear chain
🚀 Comment “Link” to get interview tricky questions mastersheet
#javascript #frontenddeveloper #webdevelopment #techinstagram
@techsharingan
6.8M
EZPromise.all
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#coding #programming #promise #javascript #async
@ezsnippet
265.7K
COCan You Follow This Tricky Promise JavaScript Code? #javascript #learntocode
@connercodes
469
COJavascript promise - JS Interview topics 👨💻
#javascriptinterviewquestions #javascriptconcepts #frontenddevelopment #webdevelopment #webdevelopment
@code_kar_yaar
23.4K
ONPromise in JavaScript
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#programming #interview #javascript
@only_programming
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