LearningMate Solutions Software Tester Interview Questions and Answers

Easy leetcode code 2 questions , HTML5 css javascript simple screen design

Q1. Oop, Simple coding javascript, react basic, sql basic
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Q1. Q1 difference between let and const
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Q2. Q2 what are closures?
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Q3. Q3. What is typeof null
Ans. 
typeof null returns 'object' in JavaScript.
• typeof null is 'object' in JavaScript

• This is a historical bug in JavaScript that has not been fixed for backward compatibility

• Example: console.log(typeof null) will output 'object'
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Q1. Q1. Find palindrome strings in an array of strings.
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Q2. Q2. Explain debouncing with example.
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Python technical SQL basic

Q1. Check if string is palindrome
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Two dynamic programming challenges at the hard level on LeetCode and 10 medium-level SQL challenge.

Q1. What is react, diff between react and angular, deep copy shallow copy, hoisting, diff between props and state
Ans. 
React is a JavaScript library for building user interfaces. It is different from Angular in various ways.
• React is a library while Angular is a framework

• React uses virtual DOM while Angular uses real DOM

• React is more flexible and easier to learn than Angular

• Deep copy creates a new object with the same values while shallow copy creates a new reference to the same object

• Hoisting is a JavaScript mechanism where variables a...read more
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Q2. Implement custom hooks and array flat method
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Implement custom hooks and array flat method
• Custom hooks are reusable functions that allow you to extract component logic into reusable functions

• Array flat method is used to flatten an array of nested arrays into a single array

• To implement custom hooks, create a function that uses the useState and useEffect hooks

• To implement array flat method, use the reduce method to flatten the array
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Q1. Machine coding round design drivezy app. It should be demoable.
Ans. 
Design a Drivezy app for vehicle rental with user-friendly features and seamless booking experience.
• User Registration: Allow users to sign up using email or social media accounts.

• Vehicle Listing: Display available vehicles with images, descriptions, and pricing.

• Booking System: Implement a calendar for users to select rental dates and times.

• Payment Integration: Support multiple payment methods like credit cards, UPI, an...read more
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Q1. Add 2 linked list and return final linked list
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Q2. Find a Element in rotated sorted array
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Q1. Matrix chain multiplication
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Q2. Find word in matrix.
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Given a matrix of characters and a word, find if the word exists in the matrix.
• Traverse the matrix and check if the first letter of the word matches any cell.

• If it does, check if the adjacent cells match the next letter of the word.

• Repeat until the entire word is found or no match is found.
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Q1. Stock buy sell problem to maximize profit.
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