How to add/remove elements to Array in Ruby?

To add or remove lements to/from array in Ruby we have different methhods.

Array.push method to add elements into Array

Example

# creating an empty array

arr1 = Array.new()

 

# adding String element into arra1

arr1.push "another string";

puts arr1;

puts "\n Addding New Element"

# adding Integer element into arra1

arr1 .push 2;

puts arr1;

Output

another string
 
Addding New Element
another string
2

 

Array.pop method to remove lement from array

pop() will remove one by one element from Array.

Example

# creating an empty array

arr1 = Array.new()

# adding String element into arra1

arr1.push "another string";

puts arr1;

puts "\n adding New Element"

# adding Integer element into arra1

arr1 .push 2;

puts arr1;

arr1.pop();

puts "\n remove last Element"

puts arr1;

arr1.pop();

puts "\n remove last Element"

puts arr1;

 

Output

another string

 adding New Element
another string
2

 remove last Element
another string

 remove last Element

 

How to delete specifi index Element from Array in Ruby?

Ruby Array has method delete_at() to delete element from specified index.

Example

# creating an empty array

arr1 = Array.new()

# adding String element into arra1

arr1.push "another string";

puts arr1;

puts "\n adding New Element"

# adding Integer element into arra1

arr1 .push 2;

puts arr1;

arr1.delete_at(1);

puts "\n delete element at index 1"

puts arr1;

 

Output

another string

 adding New Element
another string
2

 delete element at index 1
another string

 

Ruby program to generate random numbers

Ruby program to check whether the given number is prime or not

Program to Print Triangle of Numbers in Ruby

What are the various Ruby runtimes, and how are they different?

Ruby program to print Fibonacci series

How to add/remove elements to Array in Ruby?

Ruby program to print an array

How to create two dimensional array in ruby?

How to Sort Array in Ruby?

What are some of your favorite gems? What are their alternatives?

Ruby program to Calculate the factorial of given number

What are #method_missing and #send? Why are they useful?

How to get index of array element in Ruby

How to shuffle an array in Ruby?

Ruby program to add two integer numbers

What's the difference between a lambda, a block and a proc?

Creating Array with Array.new(size, obj) in Ruby

how to create an array with Array.[](*args) in Ruby ?

Ruby program to check whether the given number is Armstrong

How to Get Input with Gets in Ruby

How to Replace array elements in Ruby?

Ruby program to check whether the given number is palindrome

Ruby program to reverse a string

Projects By category