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I applied via Naukri.com and was interviewed before Apr 2022. There were 2 interview rounds.
A closure is a function that has access to variables in its outer (enclosing) scope.
A closure is created when a function is defined inside another function
The inner function has access to the outer function's variables and parameters
Closures can be used to create private variables and methods
Example: function outer() { var x = 10; function inner() { console.log(x); } return inner; } var closure = outer(); closure(); //
Event loop is a mechanism that allows Node.js to perform non-blocking I/O operations.
Event loop is responsible for handling asynchronous callbacks in Node.js.
It continuously checks the event queue for any new events and executes them one by one.
It allows Node.js to handle multiple requests simultaneously without blocking the main thread.
Event loop is implemented using libuv library in Node.js.
Event loop can be visualiz...
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I applied via Walk-in and was interviewed before Jul 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed before Jan 2021. There were 2 interview rounds.
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I applied via Recruitment Consultant and was interviewed before Sep 2018. There were 4 interview rounds.
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