[thelist] Regular expression for three or more consecutive occurrences of t he same character

[Ben Gustafson]

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I have a little JavaScript function for checking whether a string has three
consecutive occurrences of the same character. I'm wondering if there's a
regular expression for this, one that could be changed to check for n number
of the same character in a row. How 'bout it, regexp wizards out there?

<tip type="JavaScript" author="Ben Gustafson">
Here's a little function for checking whether a string has three consecutive
occurrences of the same character. (Could get a little gnarly if you want to
check for many more):

function threeInARow(str)
{
	var j = 1, k = 2;
	for (var i = 0; i < str.length; i++)
	{
		if (str.charAt(i) == str.charAt(j) && str.charAt(j) ==
str.charAt(k))
			return true;
		j++;
		k++;
	}
	return false;
}

</tip>

--Ben