OLX Autos Software Development Engineer II Interview Questions and Answers

It was 1 hr of discussion where they asked 2 DS algo questions.

Q1. Design pattern of javascript
Ans. 
One of the most commonly used design patterns in JavaScript is the Module pattern.
• Encapsulates code into a single object, providing a way to create private and public methods and variables

• Helps in organizing code, reducing global scope pollution, and promoting reusability

• Example: var Module = (function() { var privateVar = 'private'; return { publicMethod: function() { console.log(privateVar); } }; })();
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Q2. Performance improvement technique
Ans. 
One performance improvement technique is optimizing algorithms and data structures.
• Optimizing algorithms can reduce time complexity

• Using efficient data structures can reduce space complexity

• Examples: using hash tables instead of arrays for quick lookups, implementing binary search instead of linear search
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