jquery - Knockout Js - ko.utils.arrayFirst does not work -


I have the following knockout code

I try to return the food each line
This function takes ID of current available mileys - and should return some object 

  self. Function (item) {return item.id == id;}); }; & Lt; Span data-bound = "text: $ root.getMealById (meal.id)" />   
 For some reason he did not do this, why?  
 
 
 
  array first  will return an object and you will place an object in the input field Trying to bind the text value, which will not work.  
 If your function is a string value, it will work fine, updated bella here:  
  
  New function  To get the name of the food as the value, note the  .emailName;  at the end of the array  
  self.getMealNameById = function (id) {var meal = ko.utils.arrayFirst (self .availableMeals (), function (item) {Return item.id == ID;}). Nickname; Meal of return; };   
 In addition to this, the  data-dam  has been updated to  input  to use the new function:  data- Bind = "Value: GetMealNameById (1)"

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