Ruby Array Sort

Once you have data in an array you can sort it remove duplicates reverse its order extract sections of the array or search through arrays for specific data.

Ruby array sort.

This means that the original array will change instead of creating a new one which can be good for performance. Let us see an example. The ruby sort method works by comparing elements of a collection using their operator more about that in a second using the quicksort algorithm. The second form creates a copy of the array passed as a parameter the array is generated by calling to ary on the parameter.

Ruby sort arrays use the sort method. Notice that sort will return a new array with the results. In the first form if no arguments are sent the new array will be empty. A negative index is assumed relative to the end of the array that is an index of 1 indicates the last element of the array 2 is the next to last element in the array and so on.

Ruby arrays can hold objects such as string integer fixnum hash symbol even other array objects. Sort with blocks sort in descending order and sort in place. The block receives two parameters for you to specify how they should be compared. When a size and an optional default are sent an array is created with size copies of default take notice that all elements will reference the same object default.

An array of sorted elements. You can also pass it an optional block if you want to do some custom sorting. Returns a new array. Ruby arrays are not as rigid as arrays in other languages.