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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-does-the-eventemitter-works-in-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/eventEmitter_works.png
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/eventemiitter.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-eventemitter-methods-available-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-the-event-loop-works-in-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/nodejs-event-loop.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-are-event-listeners-created-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-the-difference-between-processnexttick-and-setimmediate
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-callback-function-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-difference-between-events-and-callbacks
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-an-error-first-callback
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-callback-hell-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-avoid-callback-hell-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-typically-the-first-argument-passed-to-a-callback-handler
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-timing-features-of-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-implement-a-sleep-function-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-6-nodejs-file-system
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-nodejs-read-the-content-of-a-file
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-7-nodejs-streams
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-many-types-of-streams-are-present-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-handle-large-data-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-8-nodejs-multithreading
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-is-nodejs-entirely-based-on-a-single-thread
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-does-nodejs-handle-child-threads
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-does-nodejs-support-multi-processor-platforms-and-does-it-fully-utilize-all-processor-resources
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-does-the-cluster-module-work-in-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/nodejs_cluster.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-cluster-methods-supported-by-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-make-use-of-all-cpus-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-if-nodejs-is-single-threaded-then-how-it-handles-concurrency
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-kill-child-processes-that-spawn-their-own-child-processes-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-load-balancer-and-how-it-works
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/pm2-load-balancer.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-difference-between-spawn-and-fork-methods-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-daemon-process
Forever	https://github.com/foreversd/forever
PM2	https://github.com/Unitech/pm2
Nodemon	https://github.com/remy/nodemon/
Supervisor	https://github.com/Supervisor/supervisor
Docker	https://github.com/docker
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-9-nodejs-web-module
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-use-json-web-token-jwt-for-authentication-in-nodejs
https://www.npmjs.com/package/jsonwebtoken	https://www.npmjs.com/package/jsonwebtoken
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-build-a-microservices-architecture-with-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/monolithic-and-microservices-architecture.jpg
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-microservices-communicate-with-each-other
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/microservices-communication.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-10-nodejs-middleware
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-middleware-functions-in-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/express-mw.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-the-use-of-next-in-nodejs
Try this example on CodeSandbox	https://codesandbox.io/s/next-function-nq042s
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-why-to-use-expressjs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-why-should-you-separate-express-app-and-server
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-some-of-the-most-popular-packages-of-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-can-you-make-sure-your-dependencies-are-safe
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-security-mechanisms-available-in-nodejs
Helmet	https://www.npmjs.com/package/helmet
Joi	https://www.npmjs.com/package/joi
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-npm-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-why-npm-shrinkwrap-is-useful
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-handle-file-upload-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-the-terms-body-parser-cookie-parser-morgan-nodemon-pm2-serve-favicon-cors-dotenv-fs-extra-moment-in-expressjs
https://pm2.keymetrics.io/docs/usage/quick-start/	https://pm2.keymetrics.io/docs/usage/quick-start/
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-11-nodejs-restful-api
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-restful-web-services-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-the-difference-between-reqparams-and-reqquery
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-make-post-request-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-promises-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-can-you-secure-your-http-cookies-against-xss-attacks
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-make-an-http-post-request-using-axios-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-asynchronous-programming-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-name-the-types-of-api-functions-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-difference-between-put-and-patch
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-difference-between-promises-and-async-await-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-mention-the-steps-by-which-you-can-async-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-use-promise-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-12-nodejs-routing
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-does-routing-work-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-13-nodejs-caching
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-access-cache-data-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-implement-caching-using-redis-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-implement-memcached-in-nodejs
https://www.npmjs.com/package/memcached	https://www.npmjs.com/package/memcached
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-14-nodejs-error-handling
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-the-preferred-method-of-resolving-unhandled-exceptions-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-error-handling-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-error-handling-approaches-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-garbage-collection-works-in-nodejs
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/memory-scheme.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-16-nodejs-internationalization
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-use-locale-i18n-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-17-nodejs-testing
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-a-stub
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-a-test-pyramid
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics/blob/master/assets/testPyramid.png
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-use-joi-module-for-schema-validation-in-nodejs
Try this example on CodeSandbox	https://codesandbox.io/s/schema-validation-using-joi-s2nhzs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#-18-nodejs-miscellaneous
	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-improve-nodejs-performance
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-crypto-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-execute-an-external-program-from-within-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-does-the-runtime-environment-mean-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-explain-usage-of-node_env
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-assert-works-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-the-use-of-dns-module-in-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-is-jit-and-how-is-it-related-to-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-how-to-gracefully-shutdown-nodejs-server
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-kind-of-web-application-should-never-be-built-by-using-nodejs
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	https://patch-diff.githubusercontent.com/TypeScript-Learn/nodejs-basics#q-what-are-the-types-of-applications-you-can-build-with-nodejs
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