flatmap vs filter+map

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flatmap
var options = [
  { name: 'One', assigned: true }, 
  { name: 'Two', assigned: false }, 
  { name: 'Three', assigned: true }, 
];

options.flatMap(option => {
	console.log(option);
	if (option.assigned) {
		return [option];
	}
	
	return [];
})
ready
filter map
var options = [
  { name: 'One', assigned: true }, 
  { name: 'Two', assigned: false }, 
  { name: 'Three', assigned: true }, 
];

options.map(option => {
	console.log(option)
	return option;	
}).filter(option => option.assigned)
ready

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