Flatten javascript Array into a single-depth Array Raw

ArrayFlatten.js

function flattenArray(array){
	const toFlatterArray = [];
	if(Array.isArray(array)){
		array.map((elm)=>{
			if(Array.isArray(elm)){
				const arrayList = flattenArray(elm);
                arrayList.map((_elm)=>{
                	toFlatterArray.push(_elm);
                });
			}else{
				toFlatterArray.push(elm);
			}
		});
	}

	return toFlatterArray;
}