javascript - jquery / Get only number after particular word - 


href="something.do?something_id=-1&something=u_container_id=6445194287^something=70a6c7ca4f9d52001cb17e918110c72f"; href1="something.do?something=u_container_id=7757033893"; var id = href1.substr(href1.lastindexof("=") + 1 , href1.length);

this work href1 not href. need make code container_id value. can 10 digits or less or more numbers

you can use match() capturing group regex 

href = "something.do?something_id=-1&something=u_container_id=6445194287^something=70a6c7ca4f9d52001cb17e918110c72f";  href1 = "something.do?something=u_container_id=7757033893";  var id = href1.substr(href1.lastindexof("=") + 1, href1.length);    var id = href1.match(/container_id=(\d+)/)[1];    document.write(id);

regex explanation here

regular expression visualization


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