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Asked: 2026-05-22T19:49:03+00:00

Using JavaScript, I need to check if a given string contains a sequence of

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Using JavaScript, I need to check if a given string contains a sequence of repeated letters, like this:

“aaaaa”

How can I do that?

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1 Answer

  1. Editorial Team

    You can use this function:

    function hasRepeatedLetters(str) {
    var patt = /^([a-z])\1+$/;
    var result = patt.test(str);
    return result;
}
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