added relevant files

.gitignore

@@ -0,0 +1,133 @@
+# Mac
+.DS_STORE
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*

README.md

@@ -1 +1,34 @@
-# flextech-async-programming-with-js-exercises
+### Summary of JavaScript Concepts Covered in These Exercises
+
+1. **Asynchronous Programming**:
+
+    - Understanding the differences between synchronous and asynchronous code execution.
+    - Working with callbacks and the challenges they present, such as the callback pyramid of doom.
+2. **Promises**:
+
+    - Creating and using Promises in JavaScript.
+    - Promise states: pending, fulfilled, and rejected.
+    - Consuming promises using `then`, `catch`, and `finally` methods.
+    - Chaining multiple promises for sequential execution.
+    - Handling errors and understanding how promises handle rejected states.
+    - Using Promise-based libraries like Axios.
+3. **Async/Await**:
+
+    - Simplifying asynchronous code using the `async` and `await` keywords.
+    - Error handling in async functions using try-catch blocks.
+    - Using async/await for sequential and parallel API requests.
+    - Combining promises and async/await for more complex asynchronous flows.
+4. **Advanced Promise Methods**:
+
+    - `Promise.all`: Running multiple promises concurrently and waiting for all to complete.
+    - `Promise.allSettled`: Handling all promises and capturing both resolved and rejected outcomes.
+    - `Promise.any`: Returning the first resolved promise and handling multiple sources of data.
+    - `Promise.race`: Handling the first settled promise, whether fulfilled or rejected.
+5. **HTTP Requests**:
+
+    - Making HTTP requests using `XMLHttpRequest` and Fetch API.
+    - Handling and configuring HTTP headers and status codes.
+    - Using AbortController to cancel requests.
+    - Understanding CORS and preflight requests.
+
+---