JavaScript Array Methods forEach, map, filter and More Explained Simply

JavaScript provides several built-in array methods that beginners often confuse due to their similar looping behavior. The forEach() method iterates over every element to perform side effects but returns nothing, while map() transforms each element and always returns a new array of equal length. The filter() method returns a new array containing only elements for which the callback returns true, making it useful for selective data extraction. The some() and every() methods check conditions across array elements, returning true if at least one or all elements match, respectively. The sort() method requires a comparator function for numbers, as its default behavior sorts values lexicographically rather than numerically.