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Gregersen from Denmark is a technology enthusiast who loves to work on new technologies. He also likes to manage different tasks related to product development including managing SEO, support, and of course programming. He graduated…
Neste artigo, vamos ver aspectos diferentes da metaprogramação em Ruby, mas, antes de começar, você precisa saber o que é metaprogramação. Metaprogramação é a programação de programas que escrevem ou manipulam outros programas (ou a…
Ruby Quiz Answer: D) The Ruby Math module provides the Ruby programmer with an extensive range of methods for performing mathematical tasks. In addition, the Math module includes two commonly used mathematical constants:
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1 2 3 4 5 |
Math::PI => 3.14159265358979 Math::E => 2.71828182845905 |
As…
Answer: In Ruby, the only values that evaluate to false are false and nil. Everything else – even zero (0) and an empty array ([]) – evaluates to true. This comes as a real surprise…
A classe String em Ruby vem com vários métodos internos de pesquisa de valores dentro de uma String, mas não existe nenhum com um nome direto como “contém”
The String class in Ruby comes with several built-in search methods of values within a String, but there is none with a straight name as “contains” or “search” that would express the ability to…
Sempre quando se pensa na melhor forma de fazer algo, há diversas opiniões sobre o assunto. Melhor em quais termos? Segurança, velocidade, flexibilidade, simplicidade de código, etc. Esperamos que vocês contribuam com sugestões na área…
Ruby has a creator of random numbers (or aleatory) already integrated into its code, which is the method rand. Since version
Whenever you think of the best way to do something, there are different opinions on the subject. Best in what terms? Security, speed, flexibility, code simplicity, and so on. We hope you will contribute…
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