omarkdev/es2019_array_flatMap_simple_example.js

## es2019_array_flatMap_simple_example.js
const arr1 = [1, 2, 3, 4];

const arr1FlattedMultipliedByTwo = arr1.flatMap(v => [ v * 2 ]);
// arr1FlattedMultipliedByTwo
	const arr1 = [1, 2, 3, 4];

	const arr1FlattedMultipliedByTwo = arr1.flatMap(v => [ v * 2 ]);
	// arr1FlattedMultipliedByTwo