javascript - JQuery - SyntaxError: missing formal parameter -

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i using find registered trademark symbols , tm symbols , wrap them in sup tag class. looked around since there couple people have asked question, none seem fix problem. here code

$('body :not(script,sup)').contents().filter(function(){     return this.nodetype === 3; }).replacewith(function() {     return this.nodevalue.replace(/[™®]/g, '<sup class="registermark">$&</sup>'); });

the error happening on first line

$('body :not(script,sup)').contents().filter(function(){


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