JS in switch case loop instance code

  This article mainly introduced in JS switch case loop instance code, a friend in need can refer to the

The code is as follows: Switch (objnametype) {  case ' PD ':   valueud = obj.id   id = objname;   var loadvud = Userdata.load (exam, id);   if (Loadvud = null | | loadvud = = Undefined | | loadvud = = ") {  var tmptgid = obj.id.substr (0, obj.id.in Dexof ('_'));   qnototald[qidnostr[tmptgid]]++;  }   break;   Case ' Danx ':   valueud = obj.id;   var objname = Obj.name;   var objnametop = objname.substr (0,objname.indexof ('_'));   ID = objname;   var loadvud = userdata.load (exam, id);   if (Loadvud = null | | loadvud = = Undefined | | loadvud = = ") {  var tmptgid = obj.id.substr (0, obj.id.in Dexof ('_'));   qnototald[qidnostr[tmptgid]]++;  }   break;   Case ' PP ':   valueud = obj.id;   var objname = Obj.name;   var objnametop = objname.substr (0,objname.indexof ('_'));   ID = objname;   var loadvud = userdata.load (exam, id);   IF (loadvud = null | | loadvud = = Undefined | | loadvud = = ") {  var tmptgid = obj.id.substr (0, Obj.id.indexOf ('_') );   qnototald[qidnostr[tmptgid]]++;  }   break;   Case ' text ':   valueud = Obj.value;   ID = "Text_" + obj.id;   var loadvud = userdata.load (exam, id);   if (Loadvud = null) {  if (valueud = null | | valueud = = ") {  return;  }   Else {  var tmptgid = obj.id.substr (0, Obj.id.indexOf ('_'));   qnototald[qidnostr[tmptgid]]++;  } &nbsp 　　; }   Else {  if (valueud = null | | valueud = = ") {  Userdata.remove (exam, id);   examanswer Keystr = Removestrwithcomma (examanswerkeystr, id);   Userdata.save (Examinfo, "Examanswerkeystr", examanswerkeystr, 1);   var tmptgid = obj.id.substr (0, obj.id.indexOf ('_'));   qnototald[qidnostr[tmptgid]]--;   return;  }  }   break;   Case ' checkbOx ':   ID = "Checkbox_" + obj.id.substr (0, obj.id.lastIndexOf ('_'));   var key = obj.id.substr (0, obj.id.lastIndexOf ('_'));   key = "checkbox_" + key;   VALUEUD = userdata.load (exam, key);   var flag = obj.checked;   if (valueud = null) {  if (flag) {  ID = key;   valueud = obj.id;   var tmptgid = Obj.id.substr (0, obj.id.indexOf ('_'));   qnototald[qidnostr[tmptgid]]++;  }  }   else {  if (flag) {  if (valueud.indexof (obj.id) = = 1) {  VALUEUD + = "," + obj.id  }  }   else {  if (Valueud.indexof (obj.id)!=-1) {  if (valueud.i Ndexof (', ' + obj.id)!=-1) {  valueud = Valueud.replace (', ' + obj.id, ');  }   else   if ( Valueud.indexof (obj.id + ', ')!=-1) {  valueud = valueud.replace (obj.id + ', ', ');  }   else {&N 　　Bsp Userdata.remove (exam, key);   EXAMANSWERKEYSTR = Removestrwithcomma (examanswerkeystr, key);   Userdata.save (Examinfo, "Examanswerkeystr", examanswerkeystr, 1);   var tmptgid = obj.id.substr (0, obj.id.indexOf ('_'));   qnototald[qidnostr[tmptgid]]--;   return;  }  }  }  }   break;   Case ' textarea ':   valueud = Obj.value;   ID = "Textarea_" + obj.id;   var loadvud = userdata.load (exam, id);   if (Loadvud = null) {  if (valueud = null | | valueud = = ") {  return;  }   Else {  var tmptgid = obj.id.substr (0, Obj.id.indexOf ('_'));   qnototald[qidnostr[tmptgid]]++;  } &nbsp 　　; }   Else {  if (valueud = null | | valueud = = ") {  Userdata.remove (exam, id);   examanswer Keystr = Removestrwithcomma (examanswerkeystr, id);   Userdata.save (Examinfo, "Examanswerkeystr", examanswerkeystr, 1);   var tmptgid = obj.id.substr (0, obj.id.indexOf ('_')); &nbsp qnototald[qidnostr[tmptgid]]--;   return;  }  }   break;   Default:   return; }