javascript - JQuery: how to access multiple css classes using .attr()? -


मेरे पास निम्न है: 

  & lt; div id = "unique" class = " Myclass xyz_345 "& gt; ... & lt; / div & gt;

प्रश्न : मैं xyz _ के बाद क्या # का उपयोग कर सकता हूँ, यह देखते हुए कि मेरे पास 2 सीएसएस वर्ग लागू किए गए हैं? (ऊपर दिए गए उदाहरण में, यह संख्या 345 होगी)।

मैंने निम्नलिखित की कोशिश की है, लेकिन यह काम करती है: 

  var num_after_xyz = $ ('unique ') .attr ( "वर्ग") सबस्ट्रिंग (4)।  

  var num_after_xyz = $ ('# अनूठा')। Attr (" वर्ग ") मैच (/^.*_ (\ d +) * /)।। चेतावनी (num_after_xyz [1]);

यह नियमित अभिव्यक्ति काम करना चाहिए।

यह कुछ भी दिखता है, उसके बाद _ और कुछ अंक, कुछ के बाद।


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