The length method returns the length of the array.
The push () method adds one or more elements to the end of an array and returns the new size of the array.
The pop () method removes the last element from an array and returns that element. This method changes the length of the array.
The unshift () method adds one or more elements to the start of an array and returns the new length of the array.
The shift () method removes the first element from an array and returns that element. This method changes the length of the array.
The forEach () method iterates through the array elements one by one to perform a function.
The filter () method creates and returns an array containing the elements that check the filter.
The map () method returns a new array containing all the elements of the initial array on which the function is called.
The reduce () method applies a function which is an "accumulator" and which processes each value in the array (from left to right) to reduce it to a single value.
The slice () method returns an array, containing a copy of part of the original array, the portion is defined by a start index and an end index (excluded). The original array will not be modified.
The concat () method is used to merge one or more arrays by concatenating them. This method does not modify existing arrays, it returns a new array which is the result of the operation.
The join () method creates and returns a new character string by concatenating all the elements of an array. The concatenation uses the comma or another string, supplied as an argument, as the separator.
The reverse() method reverses an array. The first array element becomes the last, and the last array element becomes the first.