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6m

How to use the Ruby 2.6 Just-in-Time (JIT) Compiler

Dec 28, 2018

Learn how to enable the experimental new Just-in-time compiler for Ruby 2.6

7
8m

Ruby's Array() and Array.wrap

Jul 30, 2019

Learn how to remove conditionals and make your code simpler and more reliable using Ruby and ActiveSupport's Array wrap methods

3
11m

Ruby Module Include Tracking

Apr 19, 2020 Pro

Sometimes you might want to keep track of all classes a module was included in. We can do that with a couple nifty tricks to make this work with both regular Ruby modules and Rails concerns.

7
8m

Wrapping Exceptions in Ruby

Mar 31, 2021 Pro

Sometimes you may need to wrap and reraise an exception. Ruby 2.1+ makes this easy by letting us raise a new error, pass in the old one, and automatically assigns the exceptions "cause" which is the original exception.

3
8m

How to use "ensure" in Ruby

Mar 14, 2022 Pro

Using ensure with blocks is extremely helpful for cleaning up things. We'll learn how to use ensure in Ruby for cleaning up open files as well as temporarily changing values for requests or test stubs.

4
19m

Flattening Scopes in Ruby

Apr 05, 2022

In this video, we will look at how to use blocks and bindings in Ruby to pass local variables across different scopes.

4
15m

Eigenclasses

May 30, 2022 Pro

In this episode, we will be looking into Ruby's eigenclasses or singleton classes. We will first look at singleton methods and then how we can access the eigenclasses of objects.

11
17m

Air Quality Monitoring with Ruby, a Raspberry PI & PMS5003 Sensor

Aug 08, 2022

Learn how to use a PMS5003 air quality sensor with Ruby on the Raspberry Pi. We'll use this to monitor air quality and gather data.

4
10m

How to use the MQTT Protocol with Ruby

Aug 22, 2022

MQTT is a message protocol for Internet of Things devices. It's very similar to pubsub where you can broadcast and subscribe to different topics. Learn how to send messages to an MQTT broker in this tutorial.

1
21m

Building Utilities with Ruby Scripts

Dec 19, 2022

In this episode, we look at how to get started making utility programs with Ruby similar to the built in cat and grep programs.

3
14m

Ruby Scripts & IRB

Apr 03, 2023

Learn how to execute Ruby Scripts and interactively run Ruby code in IRB

15
34m

Strings in Ruby

Apr 03, 2023

Learn how Strings work in Ruby

10
19m

Integers & Floats in Ruby

Apr 03, 2023

Learn how to use Integers and Floats in your Ruby code

8
33m

Arrays in Ruby

Apr 03, 2023

Learn how to use Arrays in your Ruby code

8
26m

Hashes in Ruby

Apr 03, 2023

Learn how to use Hashes in your Ruby code

11
59m

Conditionals in Ruby

Apr 03, 2023

Conditionals allow your code to take different paths. Learn how to use conditionals like if statements in your Ruby code

15
26m

Methods & Functions in Ruby

Apr 03, 2023

A method or function is a way to define a group of code that can be used repeatedly. We'll learn how to define methods in our Ruby code and then use them multiple times.

2
41m

Refactoring our Ruby code

Apr 03, 2023

So far, our project has been a single line of operation. We can refactor this to use methods to reuse code in various ways.

3
4m

Bundler's New Ruby Version File Option

Aug 18, 2023

Bundler 2.4.19 introduces a new "file:" option for specifying the Ruby version file. This makes it easy for you to have a single point of truth for your Ruby version file.

2
47m

Loops & Blocks in Ruby

Apr 03, 2023

Loops allow you to run code multiple times. This is handy when you need to process a group of items one at a time until the entire group is finished. We'll also learn about Ruby blocks to define the set of operations.

6
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