Merge Arrays in Ruby

1. Merge Arrays in Ruby
2. Use concat() to Merge Arrays in Ruby
3. Use Array#+ to Merge Arrays in Ruby
4. Use Array#push to Merge Arrays in Ruby
5. Conclusion

The array merge methods are utilized to merge two or more arrays. This is done by concatenating the arrays and sorting them in order, and the resulting array is then returned.

These methods can be beneficial when combining multiple arrays into one. For example, you may have an array of colors and another array of shapes, and you want to merge them to create a new array of colors and shapes.

Merge Arrays in Ruby

A Ruby array can be merged with another array using the following three methods.

1. Array#concat Method
2. Array#+ Method
3. Array#push method

These methods return a new array that contains the elements from both arrays. In this, the elements from the second array appear after the elements from the first.

If there are duplicate elements, the element from the second array will overwrite the element from the first.

Use concat() to Merge Arrays in Ruby

The concat() method in Ruby can merge two arrays. This is a destructive method, meaning it will modify the original array rather than create a new one.

If you don’t want to alter the original array, you can use the + operator to combine two arrays.

The concat() method differs from the << operator, which only appends an element to the end of an array. With this method, you can specify which elements to add to the end of an array and in what order.

This method produces a new array containing the elements of both original arrays.

To use this method, call it on the first array, passing in the second array as an argument. For example, if you have two arrays, arr1 and arr2, you can merge them using the following code:

arr1 = [7, 6, 9]
arr2 = [0, 4, 8]

arr1.concat(arr2)
puts arr1

Output:

7
6
9
0
4
8

This will return a new array containing the elements of arr1 and arr2.

If you like adding one array to the second one in Ruby without creating a multi-dimensional result, you can use the concat() method. This method adds the elements of one array to the end of another array and returns the resulting array.

Use Array#+ to Merge Arrays in Ruby

The standard method uses the + operator to concatenate two arrays. This will add the elements of the second array to the last of the first array.

Ruby arrays can be merged using the Array#+ method by producing a new array containing both arrays’ elements. You can use this method if you need to add an array to another array without creating a multi-dimensional result.

For example, if you have two arrays, array1 and array2, you can use the + operator to merge them into a single array like this.

Example Code:

array1 = [7, 6, 9]
array2 = [0, 4, 8]

puts array1 + array2

Output:

7
6
9
0
4
8

Use Array#push to Merge Arrays in Ruby

The push() method adds elements to an array. It adds the given values to the end of the array, regardless of whether they are duplicates.

So, if you want to add elements to an array without worrying about duplicates, use push(). The result will be a new array containing all the original array elements and the added ones in order.

The push() method takes one or more arguments and returns the new length of the array.

Example Code:

a = [9, 0, 1]
a.push(7)
puts a

Output:

9
0
1
7

You can also use the shovel operator << to append elements to an array.

a = [9, 1, 8]
a << 4
puts a

Output:

9
1
8
4

This can be helpful when you want to find the average of all the numbers in the arrays.

Conclusion

The article concludes that there are three array merge methods: the concat() method, the + operator, and the push() method. All these three methods in Ruby are a great way to combine two arrays into one.

These are especially helpful when you have two separate arrays that you want to combine into a single array. For example, if you contain an array of numbers and strings, you can use these three methods to combine them into a single array.

This can be a great way to keep your data organized and easy to access.