TLDR
{
"compilerOptions": {
"incremental": true, // Enables incremental compilation, build only the changed code
"strict": true, // Enables all strict type-checking options (best practice)
"rootDir": "src", // Root directory of input files
"outDir": "./build", // Output directory for compiled files
"allowJs": true, // Allows JavaScript files to be compiled alongside TypeScript files.
"target": "es6", // Specifies the ECMAScript target version
"module": "NodeNext", // Sets the module system to use (commonjs, nodenext, esnext)
"lib": ["es2024"], // Specifies the library files to be included in the compilation.
"sourceMap": true, // Generates source maps for debugging
"skipLibCheck": true, // Skips type checking of declaration files
"noUnusedParameters": false, // Do not allow unused parameters in functions.
"noUnusedLocals": false, // Similar to noUnusedParameters, but for local variables.
"noUncheckedIndexedAccess": true, // it ensures that indexed access types are checked for undefined values,
"esModuleInterop": true, // Enables compatibility with CommonJS modules, allowing default imports from modules with no default export.
"resolveJsonModule": true, // Allows importing JSON files as modules
"forceConsistentCasingInFileNames": true, // Ensures that file names are treated with consistent casing, which is important for cross-platform compatibility.,
"noImplicitOverride": true, // This option requires that any method in a subclass that overrides a method in a superclass must explicitly use the override keyword.
"noPropertyAccessFromIndexSignature": true, // This setting enforces that properties accessed via dot notation must be explicitly defined in the type.
"allowUnreachableCode": false, // When set to false, this option raises errors for code that is unreachable, meaning it cannot be executed.
"noFallthroughCasesInSwitch": true, // This option reports errors for switch statement cases that fall through without a break, return, or throw statement.
"noErrorTruncation": true, // When enabled, this option prevents TypeScript from truncating error messages, providing full details about the error.
"declaration": true // Generates corresponding .d.ts file
},
"include": ["src/**/*.ts"],
"exclude": []
}What Is tsconfig.json and why it matters?
The tsconfig.json file is a key part of any TypeScript project. It tells the compiler how to turn your TypeScript code into JavaScript. By setting up this file, you can control things like how strict the error checks are and what format the output should be in. This is important for managing real-world production issues effectively