Interview Q&A / Node.js
Node.js interview questions
The event loop on the server, streams, modules and building APIs with Express.
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- What does idempotent mean for HTTP methods, and which methods are idempotent?
An idempotent request has the same effect on the server whether it is sent once or many times. GET, PUT, DELETE, HEAD and OPTIONS are idempotent; POST is not, and PATCH may not be.
IntermediateQuick answer1 min read