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Essential Strategies for Debugging TypeScript Code Effectively

DEV Community·Jeferson Eiji·27 days ago
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Debugging TypeScript code can be more complex than plain JavaScript due to static typing and the compilation step. Here are practical strategies to efficiently debug your TypeScript projects: 1. Leverage TypeScript Compiler ( tsc ) Run tsc to catch type errors before running your code. Example: tsc src/index.ts Enter fullscreen mode Exit fullscreen mode 2. Use Source Maps Source maps let you debug TypeScript code directly in your browser or Node.js debugger. Enable source maps in your tsconfig.json : { "compilerOptions" : { "sourceMap" : true } } Enter fullscreen mode Exit fullscreen mode 3. Set Breakpoints in Editors Modern editors like VSCode can set breakpoints in .ts files. Use the built-in debugger panel to step through TypeScript code. 4. Add Console Logs Strategically Insert console.log at key locations to inspect variables and flow. Example: function add ( a : number , b : number ): number { console . log ( ' a: ' , a , ' b: ' , b ); return a + b ; } Enter fullscreen mode Exit fullscreen mode 5.…

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