The substring() method in. JS can be used to intercept all characters after the specified string

substring(start,stop) Method is used to extract characters that are mediated between two specified subscripts .

notes ：1）substring() The returned substrings include start The character at , But does not include stop The character at ,

       2）start Is a required parameter ,stop Is an optional parameter

       3） When stop and start When equal , Return to empty , If start>stop, The method will exchange these two parameters before extracting the substring

    Used to intercept all characters after the specified string ：

function getCaption(obj){
 
    var index=obj.lastIndexOf("\-");
 
    obj=obj.substring(index+1,obj.length);
 
//  console.log(obj);
 
    return obj;
 
}
 
var str="  Enforcement process - The examination and approval ";
 
getCaption(str);