Methods of Hash Class
Understand Ruby's Hash class methods and how they enable efficient data storage and manipulation. Discover differences from JavaScript hashes and how Redis enhances data persistence beyond in-memory structures. This lesson helps you apply these concepts practically for managing data in Ruby projects.
We'll cover the following...
We'll cover the following...
Hash in JavaScript
In general, the hash data structure is pretty straightforward. Ruby has some methods of the Hash class that we will probably see in other languages as well. Here is, for example, what hash access looks like in JavaScript:
$ node
> hh = {};
{}
> hh['something'] = 'blabla';
'blabla'
> hh
{ something: 'blabla' }
The difference is that JavaScript doesn’t have a symbol type, and most of the time strings are used as hash keys. We can see a comparison between Ruby and ...