If you’re trying to work with an existing Ruby project that has aGemfileand/or a.ruby-versionfile that specified a version older than 3.4.2, 3.3.7, 3.2.7, 3.1.6, 3.0.7, or 2.7.8, you’ll need to either update your app to use a more recent version (best solution), or install...
A question mark is used to mark predicates—methods that return a Boolean value. For example, the Array and Hash classes both define methods named empty? that test whether the data structure has any elements. An exclamation mark at the end of a method name is used to indicate that caution ...
We will also watch the load on your servers and alert you when a new app deployment has degraded performance. Optimized for Ruby apps Our servers are preconfigured for the needs of modern Ruby on Rails apps. We provide a Capistrano recipe to deploy with a single command. ...
We can pass arguments to the method on which a method has to operate. There is no limit in terms of the number of parameters that we can pass to a method. The following is a simple example of how we can create our own methods in Ruby:def add_two_numbers a, b...
A method is simply a definition of an action that can be performed on an object. Ruby has built-in object definitions and methods. One such method iscapitalizefor the Ruby classstrings(we will dive into strings later). string1 = "this string is awesome" ...
Fair warning: Even after a few years of dabbling with it, SQL syntax is still befuddling to me. And it might be the same for you, too. However, the power (and ubiquity) of SQL databases has so far surpassed my clumsiness in using it. I've found that the best way to learn is to...
Transparency is a key aspect of the blockchain technology that has taken the online casino industry by storm. Unlike traditional casinos, where players often have to place blind trust in the operators, blockchain-based casinos offer transparency never seen before. In a blockchain-powered casino, ...
They’re not the only two expressions that do; 100 < 50 has a boolean value of false, because it evaluates to the object false. But nil and false are the only two objects in Ruby with a boolean value of false. All other Ruby objects—numbers, strings, instances of MyCoolClass—have ...
Once this command has finished executing, you can check that it has installed correctly by keyingrails -vat a command prompt:Note: don’t worry too much about the version number. As long as it’s 2.2.2 or above, you’re fine. That’s it! You are now ready to write Ruby on Rails ...
SM20-308 Corundum var. Ruby Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar Small Cabinet, 7.1 x 5.1 x 3.7 cm $9,000.00Payment Plan Available OrderNow This is a very large, complexly-formed Ruby crystal from Mogok, Burma that is glassy and sculpturally artist...