by Sai gowtham

How to get first n characters of a string in Ruby

In this tutorial, we are going to learn about how to get the first n characters of a string in Ruby.

Consider, we have the following string:

month = "august"

Now, we want to get the first 3 characters aug from the above string.

Getting the first n characters

To access the first n characters of a string in ruby, we can use the square brackets syntax [] by passing the start index and length.

Here is an example, that gets the first 3 characters from the month string:

month = "august"
firstThree = month[0, 3]

puts firstThree

Output:

"aug"

In the example above, we have passed the [0, 3] to it. so it starts the extraction at index position 0, and extracts before the position 3.

Css Tutorials & Demos

How rotate an image continuously in CSS

In this demo, we are going to learn about how to rotate an image continuously using the css animations.

How to create a Instagram login Page

In this demo, i will show you how to create a instagram login page using html and css.

How to create a pulse animation in CSS

In this demo, i will show you how to create a pulse animation using css.

Creating a snowfall animation using css and JavaScript

In this demo, i will show you how to create a snow fall animation using css and JavaScript.

Top Udemy Courses

JavaScript - The Complete Guide 2021 (Beginner + Advanced)
JavaScript - The Complete Guide 2021 (Beginner + Advanced)
64,026 students enrolled
52 hours of video content
View Course
React - The Complete Guide (incl Hooks, React Router, Redux)
React - The Complete Guide (incl Hooks, React Router, Redux)
284,472 students enrolled
40 hours of video content
View Course
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
Vue - The Complete Guide (w/ Router, Vuex, Composition API)
152,857 students enrolled
48.5 hours of video content
View Course