---
id: 587d7db7367417b2b2512b9d
title: Match Beginning String Patterns
challengeType: 1
---
## Description
Prior challenges showed that regular expressions can be used to look for a number of matches. They are also used to search for patterns in specific positions in strings.
In an earlier challenge, you used the caret character (^) inside a character set to create a negated character set in the form [^thingsThatWillNotBeMatched]. Outside of a character set, the caret is used to search for patterns at the beginning of strings.
let firstString = "Ricky is first and can be found.";
let firstRegex = /^Ricky/;
firstRegex.test(firstString);
// Returns true
let notFirst = "You can't find Ricky now.";
firstRegex.test(notFirst);
// Returns false
## Instructions
Use the caret character in a regex to find "Cal" only in the beginning of the string rickyAndCal.
## Tests
```yml
tests:
- text: Your regex should search for "Cal" with a capital letter.
testString: assert(calRegex.source == "^Cal", 'Your regex should search for "Cal" with a capital letter.');
- text: Your regex should not use any flags.
testString: assert(calRegex.flags == "", 'Your regex should not use any flags.');
- text: Your regex should match "Cal" at the beginning of the string.
testString: assert(calRegex.test("Cal and Ricky both like racing."), 'Your regex should match "Cal" at the beginning of the string.');
- text: Your regex should not match "Cal" in the middle of a string.
testString: assert(!calRegex.test("Ricky and Cal both like racing."), 'Your regex should not match "Cal" in the middle of a string.');
```
## Challenge Seed
```js
let rickyAndCal = "Cal and Ricky both like racing.";
let calRegex = /change/; // Change this line
let result = calRegex.test(rickyAndCal);
```
## Solution
```js
// solution required
```