# Project: Substrings

## Assignment

Implement a method `#substrings` that takes a word as the first argument and then an array of valid substrings (your dictionary) as the second argument. It should return a hash listing each substring (case insensitive) that was found in the original string and how many times it was found.

```ruby
  > dictionary = ["below","down","go","going","horn","how","howdy","it","i","low","own","part","partner","sit"]
  => ["below","down","go","going","horn","how","howdy","it","i","low","own","part","partner","sit"]
  > substrings("below", dictionary)
  => { "below" => 1, "low" => 1 }
```

Next, make sure your method can handle multiple words:

```ruby
  > substrings("Howdy partner, sit down! How's it going?", dictionary)
  => { "down" => 1, "go" => 1, "going" => 1, "how" => 2, "howdy" => 1, "it" => 2, "i" => 3, "own" => 1, "part" => 1, "partner" => 1, "sit" => 1 }
```

Please note the order of your keys might be different.

### **Quick tips**

* Recall how to turn strings into arrays and arrays into strings.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://howtocode.trek.io/topics/deep-dives/ruby/project-substrings.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.