February 2019
Beginner
694 pages
18h 4m
English
Content preview from Mastering TypeScript 3 - Third Edition
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Setting breakpoints
Using breakpoints and debugging at this stage will only work on the generated .js JavaScript files. We will need to make a change to the tsconfig.json file to enable debugging directly in our TypeScript files. Edit the tsconfig.json file, and add a property with the name sourceMaps and the property value true. This instructs the compiler to output a source map file (named .map) for each TypeScript file we are compiling. Once we rebuild the project, these map files will appear in our source code tree. Now, we can set breakpoints directly in our .ts files for use by the VSCode debugger:
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