Javascript: Using Regex To Search For Any Four Digits In A Row

I am trying to create a function that confirms if a string contains any four digits in a row (for the purposes of finding a date). The code I have is: string.search(^\d{4}$) Any a

Solution 1:

What you want is

/\d{4}/.test(yourString)

which returns a boolean.

Note that

• the ^ and $ you were using match the start and end of the string. They would have been useful to test if a string was only made of 4 digits.
• search is useful when you want the position of the match. In your case test is simpler.

To go further, I recommend this good and concise documentation on regexes in JavaScript