tsconfig.json

{
	"compilerOptions": {
		"outDir": "dist/build",
		"target": "ES2017" /* Transpile to ES2017 */,
		"strict": true /* Enable Strict mode */,
		"noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
		"strictNullChecks": true /* Enable strict null checks. */,
		"strictFunctionTypes": true /* Enable strict checking of function types. */,
		"strictBindCallApply": true /* Enable strict 'bind', 'call', and 'apply' methods on functions. */,
		"strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
		"noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
		"alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
		"noUnusedLocals": true /* Report errors on unused locals. */,
		"noUnusedParameters": true /* Report errors on unused parameters. */,
		"noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
		"noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
		"esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
		"moduleResolution": "node",
		"declaration": true,
		"declarationDir": "./types"
	},
	"include": ["src"] /* Compile ts files inside src */
}