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PayPal · Node Js
Practice Node Js questions specifically asked in PayPal interviews – ideal for online test preparation, technical rounds and final HR discussions.
Questions
2
Tagged for this company + subject
Company
PayPal
View company-wise questions
Subject
Node Js
Explore topic-wise practice
Go through each question and its explanation. Use this page for targeted revision just before your PayPal Node Js round.
CORS (Cross-Origin Resource Sharing) enables web apps running on one domain to access resources from another. The `cors` npm package sets headers to allow or restrict requests from other origins.
const cors=require('cors');
app.use(cors({origin:'*'}));For complete preparation, combine this company + subject page with full company-wise practice and subject-wise practice. You can also explore other companies and topics from the links below.
Buffers handle raw binary data in Node.js. They are useful when dealing with file streams, TCP packets, or image data. Buffers are fixed-size byte arrays allocated outside the V8 heap for efficient memory handling.
const buf = Buffer.from('Hello');
console.log(buf.toString());