# Double Letters
by Helen Yu
tags: strings, regex, validation

## Summary
> Create a function that takes a word and returns true if the word has two consecutive identical letters.
> Examples
> double_letters("loop") ➞ true
> double_letters("yummy") ➞ true
> double_letters("orange") ➞ false
> double_letters("munchkin") ➞ false
> Notes
> N/A

## Instructions
Create a function that takes a word and returns `true` if the word has two consecutive identical letters.

### Examples
```
double_letters("loop") ➞ true

double_letters("yummy") ➞ true

double_letters("orange") ➞ false

double_letters("munchkin") ➞ false
```

### Notes
N/A