### toTitleCase

Converts a string to title case.

The algorithm featured here breaks down as follows:
1. Break the string into words, using a [Regular Expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions)
2. Capitalize each of them
3. Stich them back together, using the whitespace `' '` character as a separator

```js
const toTitleCase = str => str
  .match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
  .map(x => x.charAt(0).toUpperCase() + x.slice(1).toLowerCase())
  .join(' ');
```

```js
toTitleCase('some_database_field_name'); // 'Some Database Field Name'
toTitleCase('Some label that needs to be title-cased'); // 'Some Label That Needs To Be Title Cased'
toTitleCase('some-package-name'); // 'Some Package Name'
toTitleCase('some-mixed_string with spaces_underscores-and-hyphens'); // 'Some Mixed String With Spaces Underscores And Hyphens'
```