tsconfig.json

// {
// 	"compilerOptions": {
// 		"noImplicitAny": false,
// 		"module": "es6",
// 		"target": "es5",
// 		"jsx": "react",
// 		"sourceMap": true,
// 		"skipDefaultLibCheck": true,
// 		"strict": false,
// 		"lib": ["es6", "dom", "es2015.promise"],
// 		"types": ["webpack-env"],
// 		"allowSyntheticDefaultImports": true
// 	},
// 	"exclude": ["bin", "node_modules"]
// }
{
	"compilerOptions": {
		"baseUrl": ".",
		"module": "esnext", //only es2015 works in old IE
		"moduleResolution": "node",
		"target": "es5",
		"jsx": "react",
		"experimentalDecorators": true,
		"sourceMap": true,
		"skipDefaultLibCheck": true,
		"strict": false,
		"lib": ["es2017", "es6", "dom", "es2015.promise"],
		"allowSyntheticDefaultImports": true,
		"strictFunctionTypes": true
	},
	"exclude": ["bin", "node_modules"]
}