javascript - radio button name change for validation validation -


i want change radio button name sex1, sex2 validation.but how can add value of i

for(i=1;i<=no_applicant;i++) {   var sex = document.edu.sex+i+;   (var j=0; j<sex.length; j++) {     if (sex [j].checked)       break;   }   if (j==sex.length) {     alert("sex field "+i+" applicant  cannot leave blank");     return false;   } }

use e.g. document.edu["sex" + i].

in javascript,foo.bar convenient shorthand foo["bar"] works when key literal string matches form of identifier name. more complicated, use bracket form.


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