Shopify handleize function in JavaScript

gistfile1.txt

// from https://github.com/Shopify/liquid/blob/63eb1aac69a31d97e343822b973b3a51941c8ac2/performance/shopify/shop_filter.rb#L100
Shopify.handleize = function (str) {
    str = str.toLowerCase();

    var toReplace = ['"', "'", "\\", "(", ")", "[", "]"];
    
    // For the old browsers
    for (var i = 0; i < toReplace.length; ++i) {
        str = str.replace(toReplace[i], "");
    }

    str = str.replace(/\W+/g, "-");

    if (str.charAt(str.length - 1) == "-") {
        str = str.replace(/-+\z/, "");
    }

    if (str.charAt(0) == "-") {
        str = str.replace(/\A-+/, "");
    }

    return str
};

@cormickjbrowne , I'm only a year and a half late but yes, the g modifier needs to be there.

Updated!

Two years late here, but support for scandinavian characters such as "æ", "ø" and "å" is missing. Also other language-specific letters aren't converted to ther plain value fx: é -> e etc.
Fix for the first problem:

str = str.replace('ø','o').replace('æ','ae').replace('å','a');

@rm127 I think you can use normalize function (remove accents and similar) like this:
str.normalize('NFD').replace(/[\u0300-\u036f]/g, '')
or like this:
str.normalize("NFD").replace(/\p{Diacritic}/gu, "")

sources here:
https://stackoverflow.com/questions/990904/remove-accents-diacritics-in-a-string-in-javascript

and here
https://ricardometring.com/javascript-replace-special-characters

Here a versión of this with normalization of accents and other language especial characters:
https://gist.github.com/pablogiralt/f52d27428e7501909616d1dea04edfeb