1function validateCreditCard(s){var v="0123456789";var w="";for(i=0;i<s.length;i++){x=s.charAt(i);if(v.indexOf(x,0)!=-1)w+=x;}j=w.length/2;k=Math.floor(j);m=Math.ceil(j)-k;c=0;for(i=0;i<k;i++){a=w.charAt(i*2+m)*2;c+=a>9?Math.floor(a/10+a%10):a;}for(i=0;i<k+m;i++)c+=w.charAt(i*2+1-m)*1;return(c%10==0);}
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.