KnockoutJS subscribe to multiple observables with same callback action

Question

I\'ve got a model class in KnockoutJS which has multiple values that I\'d like to subscribe to. Each subscription will perform the same task, like so:

funct         


        

Answer 1

Do you not want to duplicate handler function's body? Extract it to a variable.

function CaseAssignmentZipCode(zipCode, userId, isNew) {
  var self = this;
  self.zipCode = ko.observable(zipCode);
  self.userId = ko.observable(userId);
  self.isNew = isNew;
  self.isUpdated = false;

  var handler = function () { self.isUpdated = true; };

  self.zipCode.subscribe(handler);
  self.userId.subscribe(handler);
}