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JavaScript Important Interview Questions
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| What are the ES6 features? | |
| explain let, var, and const? | |
| explain hoisting? | |
| Given the array as [1,2,1,3,3] write a javascript function for finding duplicates and unique numbers in the given array? | |
| what is DOM? how can we access the DOM? | |
| Explain async and await with example? | |
| Write a function to print the pyramid pattern? | |
| What is JS Engine? | |
| what is meant by Javascript Generators? | |
| How can you ensure a web page is responsive, adapting to different screen sizes and devices? Describe the methods and techniques you would use to achieve this in the DOM. | |
| What is call back function? | |
| what is meant by Higher order function? | |
| what is pure function? | |
| What is the difference between "==" and "==="? | |
| Explain closures? | |
| Write a function to print left and right angle patterns? | |
| Difference between Spread and Rest operator? | |
| Difference between "null" and "undefined"? | |
| Explain the concept of prototypal inheritance? | |
| Difference between forEach and forEachOrdered? |
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