Jak stworzyć własną wersję metody filtra
// The global variable
let s = [23, 65, 98, 5];
Array.prototype.myFilter = function(callback){
// Only change code below this line
let newArray = [];
this.forEach(function(x) {
if (callback(x) == true) {
newArray.push(x);
}
});
// Only change code above this line
return newArray;
};
let new_s = s.myFilter(function(item){
return item % 2 === 1;
});
Jolly Jaguar