Siemens Backend Developer Interview Questions and Answers

Q1. Database design
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Q2. Third parties integration
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Q1. OOP and Design patterns
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They asked me to solve 6 coding questions in one hour which doesn't make any sense.

Q1. Implement method chaining in JS
Ans. 
Method chaining allows calling multiple methods on the same object in a single line.
• Create a class with methods that return 'this' to enable chaining

• Each method should modify the object's state and return 'this'

• Example: class Calculator { add(num) { this.result += num; return this; } }

• Example: const calc = new Calculator(); calc.add(5).add(3);
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Q1. Database design
Add your answer
Q2. Third parties integration
Add your answer

Q1. OOP and Design patterns
Add your answer