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频道帖子
| 2 | 💼 JavaScript Coding Interview Questions for Freshers 🚀
Crack your next tech interview with these essential JS problems—logic + code explained clearly!
Whether you're preparing for your first role or a coding bootcamp interview, these questions are frequently asked and test your core logic-building skills.
---
🔹 1️⃣ Reverse a String (Without Built-in Methods)
👨💻 Use a loop to reverse manually:
function reverseString(str) {
let reversed = '';
for (let i = str.length - 1; i >= 0; i--) {
reversed += str[i];
}
return reversed;
}
---
🔹 2️⃣ Find the Missing Number (1 to N Sequence)
👨💻 Use the sum formula and subtract array values:
function findMissing(arr, n) {
let sum = (n * (n + 1)) / 2;
for (let num of arr) {
sum -= num;
}
return sum;
}
---
🔹 3️⃣ Check if a Number is Prime
👨💻 Efficient method with loop till √n:
function isPrime(num) {
if (num <= 1) return false;
for (let i = 2; i * i <= num; i++) {
if (num % i === 0) return false;
}
return true;
}
---
🔹 4️⃣ First Non-Repeating Character in a String
👨💻 Use an object to count character frequencies:
function firstUniqueChar(str) {
const count = {};
for (let char of str) {
count[char] = (count[char] || 0) + 1;
}
for (let char of str) {
if (count[char] === 1) return char;
}
return null;
}
---
🔹 5️⃣ Implement a Basic LRU Cache
👨💻 Using Map() to manage key order and size:
class LRUCache {
constructor(capacity) {
this.capacity = capacity;
this.cache = new Map();
}
get(key) {
if (!this.cache.has(key)) return -1;
const value = this.cache.get(key);
this.cache.delete(key);
this.cache.set(key, value); // Move to end (recently used)
return value;
}
put(key, value) {
if (this.cache.has(key)) this.cache.delete(key);
if (this.cache.size >= this.capacity) {
const firstKey = this.cache.keys().next().value;
this.cache.delete(firstKey);
}
this.cache.set(key, value);
}
}
---
💡 Pro Tip:
📌 Practice each question with variations
📌 Focus on clean logic and explaining your approach out loud
📌 Use platforms like LeetCode, CodeWars, and JSFiddle for hands-on practice
---
💬 Preparing for your first JavaScript interview? Let me know which one you'd like explained step-by-step!
❤️ Double Tap or Save this post for revision! | 209 |
| 3 | JavaScript Coding Interview Questions – Part 2 🧠🔥
Master these classic problems for your next tech interview!
These challenges are common in JavaScript interviews and great for sharpening your problem-solving skills. Let’s dive into more must-know examples 👇
---
🔹 6️⃣ Check for Palindrome (Two Pointers)
✅ Efficient method without reversing the string
function isPalindrome(str) {
let left = 0, right = str.length - 1;
while (left < right) {
if (str[left] !== str[right]) return false;
left++;
right--;
}
return true;
}
---
🔹 7️⃣ FizzBuzz from 1 to N
✅ Classic logic test—don’t overthink it
function fizzBuzz(n) {
for (let i = 1; i <= n; i++) {
if (i % 15 === 0) console.log("FizzBuzz");
else if (i % 3 === 0) console.log("Fizz");
else if (i % 5 === 0) console.log("Buzz");
else console.log(i);
}
}
---
🔹 8️⃣ Flatten a Nested Array
✅ Recursively flatten arrays of any depth
function flatten(arr) {
return arr.reduce((flat, item) =>
flat.concat(Array.isArray(item) ? flatten(item) : item), []);
}
---
🔹 9️⃣ Count Vowels in a String
✅ Use regex to match all vowels
function countVowels(str) {
return (str.match(/[aeiou]/gi) || []).length;
}
---
🔹 🔟 Find Factorial Using Recursion
✅ Test your understanding of recursion
function factorial(n) {
if (n <= 1) return 1;
return n * factorial(n - 1);
}
---
💡 Pro Tip:
➡️ Always explain your thought process when solving these in interviews
➡️ Practice with variations: edge cases, input validation, and optimization
💬 Preparing for coding rounds? Bookmark this and follow for Part 3 coming soon!
❤️ Tap “Like” if you found this helpful! | 178 |
| 4 | [02/07, 22:27] Sensei: ✅ 𝐄𝐘 𝐃𝐚𝐭𝐚 & 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 - 𝐈𝐧𝐭𝐞𝐫𝐧𝐬𝐡𝐢𝐩!
Position: Data and Analytics - Intern
Qualifications: Bachelor’s Degree/ MCA/ MBA
Salary: 4 - 7 LPA (Expected)
Experience: Freshers
Location: Hyderabad/ Bengaluru
📌Apply Now: https://eyglobal.yello.co/jobs/32FUg_WFTBVzfHkE68L-dQ?job_board_id=c1riT--B2O-KySgYWsZO1Q
https://eyglobal.yello.co/jobs/PqQNfBqzCvohqpFcmf_MXg?job_board_id=c1riT--B2O-KySgYWsZO1Q
All the best! 👍👍
[02/07, 22:28] Sensei: ICON Intern Bangalore
Batch: 2026/2025
Apply- https://careers.iconplc.com/job/intern-in-india-bangalore-jid-43405?_atxsrc=LinkedIn&utm_source=LinkedIn
Discover Dollar Analytics/AI Engineer Intern Bangalore
Batch: 2026/2025
Apply- https://discoverdollar.keka.com/careers/jobdetails/91847?source=linkedin
Lilly Software Engineer Hyderabad
Batch: 2025/2024/2023
Apply- https://careers.lilly.com/us/en/job/LILLUSR89062EXTERNALENUS/Software-Engineer?utm_source=linkedin&utm_medium=phenom-feeds
Goldman Sachs Analyst Bangalore/Hyderabad
Batch: Not mentioned
Apply- https://hdpc.fa.us2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/LateralHiring/job/148914?utm_medium=jobshare&mode=job&iis=LinkedIn | 132 |
| 5 |  Photo from Sensei
https://www.tcsion.com/hub/national-qualifier-test/
Last date to apply:
24th June 2025
Test will be on:
6th July 2025 | 216 |
| 6 | Master Javascript :
The JavaScript Tree 👇
|
|── Variables
| ├── var
| ├── let
| └── const
|
|── Data Types
| ├── String
| ├── Number
| ├── Boolean
| ├── Object
| ├── Array
| ├── Null
| └── Undefined
|
|── Operators
| ├── Arithmetic
| ├── Assignment
| ├── Comparison
| ├── Logical
| ├── Unary
| └── Ternary (Conditional)
||── Control Flow
| ├── if statement
| ├── else statement
| ├── else if statement
| ├── switch statement
| ├── for loop
| ├── while loop
| └── do-while loop
|
|── Functions
| ├── Function declaration
| ├── Function expression
| ├── Arrow function
| └── IIFE (Immediately Invoked Function Expression)
|
|── Scope
| ├── Global scope
| ├── Local scope
| ├── Block scope
| └── Lexical scope
||── Arrays
| ├── Array methods
| | ├── push()
| | ├── pop()
| | ├── shift()
| | ├── unshift()
| | ├── splice()
| | ├── slice()
| | └── concat()
| └── Array iteration
| ├── forEach()
| ├── map()
| ├── filter()
| └── reduce()|
|── Objects
| ├── Object properties
| | ├── Dot notation
| | └── Bracket notation
| ├── Object methods
| | ├── Object.keys()
| | ├── Object.values()
| | └── Object.entries()
| └── Object destructuring
||── Promises
| ├── Promise states
| | ├── Pending
| | ├── Fulfilled
| | └── Rejected
| ├── Promise methods
| | ├── then()
| | ├── catch()
| | └── finally()
| └── Promise.all()
|
|── Asynchronous JavaScript
| ├── Callbacks
| ├── Promises
| └── Async/Await
|
|── Error Handling
| ├── try...catch statement
| └── throw statement
|
|── JSON (JavaScript Object Notation)
||── Modules
| ├── import
| └── export
|
|── DOM Manipulation
| ├── Selecting elements
| ├── Modifying elements
| └── Creating elements
|
|── Events
| ├── Event listeners
| ├── Event propagation
| └── Event delegation
|
|── AJAX (Asynchronous JavaScript and XML)
|
|── Fetch API
||── ES6+ Features
| ├── Template literals
| ├── Destructuring assignment
| ├── Spread/rest operator
| ├── Arrow functions
| ├── Classes
| ├── let and const
| ├── Default parameters
| ├── Modules
| └── Promises
|
|── Web APIs
| ├── Local Storage
| ├── Session Storage
| └── Web Storage API
|
|── Libraries and Frameworks
| ├── React
| ├── Angular
| └── Vue.js
||── Debugging
| ├── Console.log()
| ├── Breakpoints
| └── DevTools
|
|── Others
| ├── Closures
| ├── Callbacks
| ├── Prototypes
| ├── this keyword
| ├── Hoisting
| └── Strict mode
|
| END __ | 261 |
| 7 | Master Javascript :
The JavaScript Tree 👇
|
|── Variables
| ├── var
| ├── let
| └── const
|
|── Data Types
| ├── String
| ├── Number
| ├── Boolean
| ├── Object
| ├── Array
| ├── Null
| └── Undefined
|
|── Operators
| ├── Arithmetic
| ├── Assignment
| ├── Comparison
| ├── Logical
| ├── Unary
| └── Ternary (Conditional)
||── Control Flow
| ├── if statement
| ├── else statement
| ├── else if statement
| ├── switch statement
| ├── for loop
| ├── while loop
| └── do-while loop
|
|── Functions
| ├── Function declaration
| ├── Function expression
| ├── Arrow function
| └── IIFE (Immediately Invoked Function Expression)
|
|── Scope
| ├── Global scope
| ├── Local scope
| ├── Block scope
| └── Lexical scope
||── Arrays
| ├── Array methods
| | ├── push()
| | ├── pop()
| | ├── shift()
| | ├── unshift()
| | ├── splice()
| | ├── slice()
| | └── concat()
| └── Array iteration
| ├── forEach()
| ├── map()
| ├── filter()
| └── reduce()|
|── Objects
| ├── Object properties
| | ├── Dot notation
| | └── Bracket notation
| ├── Object methods
| | ├── Object.keys()
| | ├── Object.values()
| | └── Object.entries()
| └── Object destructuring
||── Promises
| ├── Promise states
| | ├── Pending
| | ├── Fulfilled
| | └── Rejected
| ├── Promise methods
| | ├── then()
| | ├── catch()
| | └── finally()
| └── Promise.all()
|
|── Asynchronous JavaScript
| ├── Callbacks
| ├── Promises
| └── Async/Await
|
|── Error Handling
| ├── try...catch statement
| └── throw statement
|
|── JSON (JavaScript Object Notation)
||── Modules
| ├── import
| └── export
|
|── DOM Manipulation
| ├── Selecting elements
| ├── Modifying elements
| └── Creating elements
|
|── Events
| ├── Event listeners
| ├── Event propagation
| └── Event delegation
|
|── AJAX (Asynchronous JavaScript and XML)
|
|── Fetch API
||── ES6+ Features
| ├── Template literals
| ├── Destructuring assignment
| ├── Spread/rest operator
| ├── Arrow functions
| ├── Classes
| ├── let and const
| ├── Default parameters
| ├── Modules
| └── Promises
|
|── Web APIs
| ├── Local Storage
| ├── Session Storage
| └── Web Storage API
|
|── Libraries and Frameworks
| ├── React
| ├── Angular
| └── Vue.js
||── Debugging
| ├── Console.log()
| ├── Breakpoints
| └── DevTools
|
|── Others
| ├── Closures
| ├── Callbacks
| ├── Prototypes
| ├── this keyword
| ├── Hoisting
| └── Strict mode
|
| END __ | 1 |
| 8 | Honeywell hiring Software Engineer
Apply link: https://careers.honeywell.com/en/sites/Honeywell/job/103921
Michelin hiring Software Engineer
Apply link: https://michelinhr.wd3.myworkdayjobs.com/Michelin/job/Pune/Software-Engineer_R-2025013382
https://jobs.cm.com/o/software-engineer-intern/c/new
2025 and 2026 Batch only ✅
Roles-
1.Founding Intern - Full Stack Developer
2.Founding Intern - AI/ML Engineer
Chose above role and below details and send email
*Email:* hr@fenrir-security.com with Resume or LinkedIn profile.
GitHub or portfolio links.
𝐒&𝐏 𝐆𝐥𝐨𝐛𝐚𝐥 𝐢𝐬 𝐡𝐢𝐫𝐢𝐧𝐠 𝐅𝐫𝐞𝐬𝐡𝐞𝐫𝐬!
Position: Apprentice, Data Management
Qualifications: Graduate/ Post Graduation/ MBA
Salary: 4 - 6 LPA (Expected)
Batch: 2023/ 2024/ 2025/ 2026
Experience: Freshers
Location: Bangalore; Gurgaon; Mumbai, India
📌Apply Now: https://careers.spglobal.com/jobs/315037
*📌Company*: Amazon
*Role*: ML Data Associate I
*Batch*: 2025
*Apply*: https://www.amazon.jobs/en/jobs/2997479/ml-data-associate-i?cmpid=DA_INAD200785B | 215 |
| 9 | Honeywell hiring Software Engineer
Apply link: https://careers.honeywell.com/en/sites/Honeywell/job/103921 | 151 |
| 10 | Cisco hiring Software Engineer
Apply link: https://jobs.cisco.com/jobs/ProjectDetail/Software-Engineer-1-3-years/1444937 | 145 |
| 11 | Michelin hiring Software Engineer
Apply link: https://michelinhr.wd3.myworkdayjobs.com/Michelin/job/Pune/Software-Engineer_R-2025013382 | 141 |
| 12 | https://careers.kbr.com/us/en/job/KIVKBRUSR2105228EXTERNALENUS/Developer-Intern?utm_source=linkedinjobboard&utm_medium=phenom-feeds
2026 Batch ✅ | 149 |
| 13 | https://jobs.cm.com/o/software-engineer-intern/c/new
2025 and 2026 Batch only ✅ | 179 |
| 14 | 📢 Reminder for Everyone!
Starting tomorrow, we’ll resume sharing courses, job/internship opportunities, placement updates, and much more on this channel! 🚀
Stay tuned, stay active, and don’t miss out on any valuable updates. Let’s grow and learn together! 💼📚✨
Thank you for your support!
#JobUpdates #Courses #Opportunities #CareerGrowth | 162 |
| 15 | Hey everyone!
Just a quick heads-up — I might not be posting anything until Monday. If something important comes up, I’ll definitely share it. Thanks for understanding! | 236 |
| 16 | 🛑 *STOP Getting Rejected as a Fresher!*
You’ve applied to 50+ jobs... but all you get is this:
❌ *"We regret to inform you..."*
It’s not your fault — your *resume is not passing the ATS (Applicant Tracking System)*.
💡 Here’s one smart fix using *ChatGPT* — that can turn your generic resume into an *interview magnet* in 30 seconds.
🎯 Watch this 40-second YouTube Short and fix your resume today:
👉 [https://youtube.com/shorts/s5X0JjZTrAI?si=Ho9ofmByDX3edA1L](https://youtube.com/shorts/s5X0JjZTrAI?si=Ho9ofmByDX3edA1L)
💬 Includes the exact ChatGPT prompt every fresher must try.
📥 Save this. Share with your job-hunting friends.
\#FresherJobs #ResumeTips #ChatGPTforJobs #ATSResume #JobHacks #YouTubeShorts #CareerTips | 228 |
| 17 | 🚀 Hot Job Alert from Meta – Bangalore! 🏙️
🔊 Calling all passionate engineers – this could be your big break at META! 🔥
🎯 Roles Open NOW:
💻 1. Software Engineer – Machine Learning
👉 Apply here: [https://lnkd.in/gHFdv4vY]
🌐 2. Software Engineer – Host Networking
👉 Apply here: [https://lnkd.in/gxTmXJWt]
📊 3. Data Engineer – Product Analytics
👉 Apply here: [https://lnkd.in/g5ZupHwB]
💡 Why META?
✔️ Work with world-class engineers
✔️ Build impactful products at scale
✔️ Competitive salary + insane perks
🫵 Tag a friend or forward this to your circle – Let’s help each other grow!
🔁 Share this in your tech communities and Telegram groups 📲
WhatsApp link:
https://chat.whatsapp.com/Dk0JvGbqPI2JSzKW73GZK3
Telegram link:
https://t.me/synkrone
📌 Opportunities like this don’t wait. Apply now and stand out! | 236 |
| 18 | Zelestra is hiring Junior Data Scientist 🚀
Qualification : Bachelor's degree
Experience : 0-2 Years
Location :; Gurugram
Apply link : https://careers.solarpack.es/job/Haryana-Junior-Data-Scientist/1162773055/ | 189 |
| 19 | NielsenIQ is hiring!
Position: Junior Associate, Power BI
Qualification: Bachelor’s Degree
Experience: Entry Level
Location: Pune, India
📌Apply Link: https://jobs.smartrecruiters.com/NielsenIQ/744000063280269-jr-associate-bi | 170 |
| 20 | JPMorgan Chase is hiring!
Position: Financial Controller - Analyst
Qualifications: Bachelor’s Degree/ CA/ MBA
Salary: 6 - 10 LPA (Expected)
Experience: Freshers/ Experienced
Location: Bengaluru; Mumbai, India
📌Apply Now: https://jpmc.fa.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_1001/jobs/preview/210625042 | 138 |
