The Array concat() method joins two or more arrays, returning a new array containing the joined arrays, without changing the existing arrays.

The Array copyWithin() method copies array elements to another position in an array, overwriting the existing values.

The Array entries() method returns an array iterator object that shows the key and value pairs currently existing within the array.

The Array every() method executes a function for each array element, returning true if the function returns true or false.

The Array fill() method fills specified elements in an array with a value, overwriting the original array.

The filter() method creates a new array filled with elements that pass a test provided by a function, leaving the existing array unchanged.

The Array find() method executes a function for each array element and returns the value of the first element that passes a test.

The Array findIndex() method executes a function for each array element, and returns the index (position) of the first element that passes a test.

The Array forEach() method calls a function, running it for each item in an array.

The Array.from() method returns an array from any object with a length property.

The Array includes() method returns true if an array contains a specified value, and returns false if the value is not found.

The Array indexOf() method returns the first index position of a specified value, and returns -1 if the value is not found in the array.

The Array.isArray() method tests an object to determine if it’s an array. It returns true if an object is an array and false if the object is not.

The Array map() method creates a new array by calling a function for every array item.

The Array keys() method returns an array iterator object containing the keys of a specified array.

The Array pop() method removes and returns the last element of an array, changing the original array.

The lastIndexOf() method returns the last position of a specified value, searching from right to left, returning -1 if the value is not found.

The Array push() method adds new items to the end of an array, changing the length of the array.

The reduce() method executes a reducer function for every array item, returning a single value representing the function’s accumulated result.