javascript - Angular Attribute Always Undefined -


i trying bind css class using angularjs function. it's working printing many error on browser console. can please me on matter??. have attached code , screenshot below.

 <tr ng-repeat-start="inventory in inventorydetails.hotelfareinventoryallotmentdetails">                                 <td  rowspan="2">{{inventory.hotelroomcategoryname}}</td>                                 <td>inventory</td>                                 <td ng-class="getclassname(1)">{{inventory.d1.inventory}}</td>                                 <td ng-class="getclassname(2)">{{inventory.d2.inventory}}</td>                                 <td ng-class="getclassname(3)">{{inventory.d3.inventory}}</td>                  {{inventory.d31.inventory}}</td>                                                           </tr>                             <tr ng-repeat-end>                                 <td>cutoff</td>                                 <td ng-class="{{getclassname(1}})">{{inventory.d1.cutoff}}</td>                                 <td ng-class="getclassname(2)">{{inventory.d2.cutoff}}</td>                                 <td  ng-class="getclassname(3)">{{inventory.d3.cutoff}}</td>                              </tr>  
  $scopechild.getclassname = function (dayid) {                                  var dayindex = parseint(dayid) - 1;                                 if ($scopechild.days[dayindex].isweekend) {                                     return 'weekend';                                 }                                 else {                                     return '';                                 }                            }

enter image description here

from error can see $scopechild exists , has member called days. however, $scopechild.days[dayindex] undefined. result, isweekend not existent property of undefined object. result, error. there 2 cases:

  • you might want make sure $scopechild.days[dayindex] exist whenever call function, fixing logic of code
  • you might want make sure error not happen, if function called in wrong way

if want write library, need idiot-proof solution, if problem lies in algorithm, need rethink it. instance, if 1 looks @ dayid, he/she should realize values of dayid should either between 0..6 or 1..7. id of monday in case? sure parameter dayid numeric? no trailing white characters? number existent in days? etc., etc. bet problem algorithm flawed , suggest should debug. example:

  $scopechild.getclassname = function (dayid) {                                  var dayindex = parseint(dayid) - 1;                                 if (!$scopechild.days[dayindex]) {                                     dayindex = "busted..."; //put breakpoint here , see happens                                     return;                                 }                                 if ($scopechild.days[dayindex].isweekend) {                                     return 'weekend';                                 }                                 else {                                     return '';                                 }                            }

also, vkrishna pointed out, have syntax error, is, close paranthesis not opened. , finally, advisable paste error question instead of attaching image.


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