chore(typescript): update .gitignore and .npmignore with comprehensive patterns

typescript/.gitignore

@@ -1,5 +1,34 @@
-.LAST_BUILD
-*.snk
+# TypeScript compiled files
 *.js
+!jest.config.js
 *.d.ts
+
+# TypeScript incremental build states
+*.tsbuildinfo
+
+# Node.js dependency directory
+node_modules/
+
+# NPM debug logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# CDK asset staging directory
+.cdk.staging
+cdk.out
+
+# Legacy build artifacts
+.LAST_BUILD
+*.snk
+
+# Editor and IDE files
+.idea/
+.vscode/
 *.swp
+*.swo
+*~
+
+# OS specific files
+.DS_Store
+Thumbs.db

typescript/.npmignore

@@ -1,3 +1,32 @@
+# TypeScript source files
+*.ts
+!*.d.ts
 
+# Test files
+test/
+__tests__/
+
+# CDK asset staging directory
+.cdk.staging
+cdk.out
+
+# Legacy build artifacts
 .LAST_BUILD
-*.snk
+*.snk
+
+# Source control files
+.git/
+.github/
+.gitignore
+
+# Configuration files
+tsconfig.json
+cdk.json
+jest.config.js
+.eslintrc.js
+.prettierrc
+.npmignore
+
+# Editor and IDE files
+.idea/
+.vscode/

typescript/README.md

@@ -4,6 +4,25 @@
 
 This section contains all the CDK code examples written in Typescript. For more information on using the CDK in Typescript, please see the [Developer Guide](https://docs.aws.amazon.com/cdk/latest/guide/work-with-cdk-typescript.html).
 
+## Repository Configuration Files
+
+This directory contains the following configuration files:
+
+- `.gitignore`: Specifies which files and directories should be excluded from Git version control
+  - Excludes compiled JavaScript files (except jest.config.js)
+  - Excludes TypeScript declaration files (*.d.ts)
+  - Excludes node_modules and other build artifacts
+  - Excludes CDK staging and output directories
+  - Excludes editor/IDE specific files and OS-specific files
+
+- `.npmignore`: Specifies which files and directories should be excluded when publishing to npm
+  - Excludes TypeScript source files (but includes declaration files)
+  - Excludes test files and directories
+  - Excludes configuration files and build artifacts
+  - Excludes source control files
+
+These files are used as a reference for the individual example projects. Each example may have its own specific configuration files tailored to its needs.
+
 ## Running Examples
 
 To run a Typescript example, execute the following: