var tag = /<\/?\w+(?:\s+\w+(?:\s*=\s*(?:(?:"(?:\\.|[^"])*")|
(?:'(?:\\.|[^'])*')|[^>\s]+))?)*\s*\/?>/gim;
var tagName = /^<\/?(\w+)/im;
String.prototype.stripHTMLTags = function(tagsToKeep){
if(tagsToKeep)
tagsToKeep = tagsToKeep.invoke('toLowerCase');
return this.replace(tag, function(m){
return (tagsToKeep && tagsToKeep.indexOf(m.match(tagName)
[1].toLowerCase())!=-1? m: '');
});
};
alert('<a href="javascript:alert(\'>\')">test</a>'.stripHTMLTags());
alert('<a href="javascript:alert(\'>\')">test</a>'.stripTags());
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