tsconfig.json

{
	"compilerOptions": {
		/** General settings **/
		"target": "esnext",
		"module": "esnext",
		"lib": [
			"dom",
			"esnext"
		],
		"jsx": "react-jsx", // transpile JSX to React.createElement
		"isolatedModules": true, // warns if code can’t be correctly interpreted by a single-file transpilation process
		"noEmit": true, // declares that tsc is only used for type checking and compiler to not output transpiled code
		/** Module settings **/
		"moduleResolution": "node", // use Nodejs module resolution strategy (else uses classic TS strategy)
		"baseUrl": "./", // for absolute file resolution
		"esModuleInterop": true, // allow interop between ESM and CJS/AMD/UMD modules
		"resolveJsonModule": true, // allow importing .json files
		/** Output files **/
		"declaration": true, // generate d.ts files for every ts or js file
		"declarationDir": "dist", // root directory where d.ts files are emitted
		"sourceMap": true, // generate a .js.map files for compilers to display original Typescript source
		"preserveConstEnums": true, // do not erase const enum declarations, allow enums to exist at runtime
		/** Compiler settings **/
		"allowJs": true, // allow JS files to be imported
		"skipLibCheck": true, // type check code specifically referring to rather than all d.ts files for libs
		"forceConsistentCasingInFileNames": true, // issue error if file import is of different case
		"strictBindCallApply": true, // check that functions are invoked with the correct arguments
		"allowSyntheticDefaultImports": true, // allow for imports e.g. import React from "react"
		"alwaysStrict": true, // ensures files are parsed in ECMAScript strict mode
		"noFallthroughCasesInSwitch": true // report error for fallthrough cases
	},
	"include": [
		"src/**/*",
		"tests/**/*",
		"custom-types/*"
	],
	"exclude": [
		"node_modules",
		"rollup.config.js"
	]
}