vimeo id regex

var subject = "https://vimeo.com/195940605";
var result = subject.match(/(?:www\.|player\.)?vimeo.com\/(?:channels\/(?:\w+\/)?|groups\/(?:[^\/]*)\/videos\/|album\/(?:\d+)\/video\/|video\/|)(\d+)(?:[a-zA-Z0-9_\-]+)?/i);
document.write(result[0]);
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