JAVASCRIPT: ARRAYS – REDUCING TO AN ARRAY

//**
	* Function that recieves a array and the rule to filter the itens on it
	* One sample:
	* function reduceToArray([],item=>item.id==1);
	*
	* Rule is to be a function that will have a item of the array as the parameter and his result is a boolean
	* like this for example:
	* function rule(item){
	* return item.id ==1;
	* }
	* @Author Leonardocregis
	*/

	function reduceToArray (arr,rule){
	if ( Array.isArray(arr)){
	if (arr.length {
	if ( !Array.isArray(acc)){
	let aux = acc ;
	acc = [];
	if (rule(aux)){
	acc.push(aux);
	}
	}
	if (rule(curr))
	acc.push(curr);
	return acc;
	});
	}
	if (rule(arr)){
	let newArr = [];
	newArr.push(arr);
	return newArr;
	}
	return [];
	};

Leonardo Regis