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Node.js is a runtime environment that allows you to run JavaScript on the server side.
Node.js is built on Chrome's V8 JavaScript engine.
It uses an event-driven, non-blocking I/O model.
Node.js is commonly used for building scalable network applications.
To join in MongoDB, you can use the $lookup aggregation stage to perform a left outer join between two collections.
Use the $lookup aggregation stage in MongoDB to join collections.
Specify the localField and foreignField to define the fields to join on.
Use the as field to specify the name of the new field that will contain the joined data.
I appeared for an interview in Sep 2024, where I was asked the following questions.
I applied via Naukri.com and was interviewed before Dec 2023. There was 1 interview round.
iorta Technology Solutions interview questions for popular designations
I appeared for an interview before Oct 2023.
Shallow copy deep copy implement it
Removing duplicates from array
React Js all basic question
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posted on 4 May 2019
I applied via Naukri.com and was interviewed in Oct 2018. There were 3 interview rounds.
I applied via Company Website and was interviewed before Dec 2019. There were 3 interview rounds.
posted on 5 Oct 2023
I applied via Company Website and was interviewed before Oct 2022. There were 5 interview rounds.
Duration is around 1 hour
posted on 2 Jul 2024
Find the second largest number in an array of strings.
Convert the strings to numbers for comparison.
Sort the array in descending order.
Return the second element in the sorted array.
Find pairs in an array that sum up to a given target value.
Use a hash set to store the difference between the target value and each element in the array.
Iterate through the array and check if the current element's complement exists in the hash set.
Return the pairs that sum up to the target value.
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