Q. What is array..and difference between array and list? Q.what is hoisting in JavaScript. Q.what is IIFE. Q.what is callback function. Q.promises in JavaScript Q.what is event delegation. Q.what is thrilling. Q.what is call, bind and apply. Q.what are the future of react. Q.write a program to check valid String. Q.output based ques on JavaScript.
Frontend Developer Interview Questions
8,961 frontend developer interview questions shared by candidates
Projects that you have done in school/work
Why are you interested in hashtacs?
Whether I am interested in working with React.js or not?
Introduce yourself what is class? what is object? what are access modifiers? What is polymorphism, interface, inheritance, encapsulation? What is difference between private and protected? What is static? How static is used in class? How to use interface? How to inherit another class? Which features and member can i use in child class? Is there any limit? What is constructor, destructor? What if I call child constructor, will the parent class constructor gets called? What is function overloading and overriding? What is exception? Loops? How to define infinite loop? Syntax of for loop? Switch case ? if else? When to use if else and switch case importance of each? What are cookies? Cache? What is database transaction? Normalization? Query? How to retrieve last 10 records? How to delete records of only one column? What is view? Write a query to update only one record Q. 2 + 2 = 8 3 + 3 = 18 6 + 6 = 72 10 +10 = ? Q. 11+22 = 23, 22 + 33 = 65, 33+44 = 127, 55+66=? Q. 7,11,13,17,19,23,29,31,37,? Q. there are total 8 balls of same color same size , but one of them is heavier than other all 7, you have a balance machine but have only two chance or only two time you can use machine for finding that ,the which one is heavier ? So which programming language are you familiar with ? Python! Find output ? X = 1 1. for i in range(0): Print(X) 2. x =1 while(true): if x%0o7 == 0: break print(x) x+=1 3. d = {0:’a’,1:’b’,2:’c’} for i in d: print(i) 4.
Coding Assessment Interview on the Tech stack and Assessment you had done. HR
What is Typescript and why do u use it?
They ask me few basic Css questions like position, sementic tag/element difference between html5 and old one
how the keys work in react. What takes the second argument and the system and how it works
Two Sum problem with all the possible pairs Follow up- Only unique pairs
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