How to find 3 or more consecutive characters?

Question

I'm making a password checking. One of those functions is to find if the inputted password is consecutively repeated. I do not have codes yet because I don't know how to do it.

I found this one RegEx match two or more same character non-consecutive but it only match repeated commas.

Here's are the scenarios:

5236aaa121 - Repeated pattern because a is consecutively repeated 3 times

2312aa32aa - No repeated character

111111asd - Repeated pattern because 1 is consecutively repeated many times

Answer 1

Use a back reference: /(.)\1\1/

Example:

var hasTripple = /(.)\1\1/.test('xyzzzy');

JSFiddle Example

Answer 2

Try this regex: (.)\1\1+

/(.)\1\1+/g

The dot matches any character, then we are looking for more than one in a row. i tested it on http://regexpal.com/ and i believe it does what you want

you can use this like this:

str.match(/(.)\1\1+/g).length

just check that it is 0

to see this in action.... http://jsfiddle.net/yentc/2/