In Angular I need to search objects in an array

Question

In Angular  I have in scope a object which returns lots of objects  Each has an ID  this is stored in a flat file so no DB  and I seem to not be able to user ng-resource   In my controller     scope fish          category  freshwater   id  1   name   trout   more  false         category  freshwater   id  2   name  bass   more  false        In my view I have additional information about the fish hidden by default with the ng-show more  but when I click the simple show more tab  I would like to call the function showdetails fish fish id    My function would look something like     scope showdetails   function fish id          var fish    scope fish get  id  fish id        fish more   true      Now in the the view the more details shows up  However after searching through the documentation I can t figure out how to search that fish array    So how do I query the array  And in console how do I call debugger so that I have the  scope object to play with

User · Answer

Angularjs already has filter option to do this    https   docs angularjs org api ng filter filter

User · Answer

I know if that can help you a bit   Here is something I tried to simulate for you   Checkout the jsFiddle      http   jsfiddle net migontech gbW8Z 5   Created a filter that you also can use in  ng-repeat   app filter  getById   function       return function input  id        var i 0  len input length      for    i lt len  i            if   input i  id     id            return input i                     return null            Usage in controller   app controller  SomeController      scope     filter   function  scope   filter          scope fish     category  freshwater   id  1   name   trout   more  false      category  freshwater   id  2   name  bass   more  false           scope showdetails   function fish id            var found    filter  getById    scope fish  fish id            console log found             scope selected   JSON stringify found                 If there are any questions just let me know

User · Answer

Saw this thread but I wanted to search for IDs that did not match my search  Code to do that   found    filter  filter    scope fish   id    fish id    false

User · Answer

A dirty and easy solution could look like   scope showdetails   function fish id        angular forEach  scope fish  function fish  key            fish more   fish id    fish id

User · Answer

Your solutions are correct but unnecessary complicated  You can use pure javascript filter function  This is your model         scope fishes     category  freshwater   id  1   name   trout   more  false      category  freshwater   id  2   name  bass   more  false       And this is your function          scope showdetails   function fish id            var found    scope fishes filter  id   fish id             return found            You can also use expression         scope showdetails   function fish id            var found    scope fishes filter function fish   return fish id     fish id              return found            More about this function  LINK

User · Answer

To add to  migontech s answer and also his address his comment that you could  probably make it more generic   here s a way to do it   The below will allow you to search by any property    filter  getByProperty   function         return function propertyName  propertyValue  collection            var i 0  len collection length          for    i lt len  i                  if  collection i  propertyName      propertyValue                    return collection i                                   return null              The call to filter would then become   var found    filter  getByProperty    id   fish id   scope fish     Note  I removed the unary    operator to allow for string-based matches

User · Answer

You can use the existing  filter service  I updated the fiddle above http   jsfiddle net gbW8Z 12     scope showdetails   function fish id         var found    filter  filter    scope fish   id  fish id   true        if  found length              scope selected   JSON stringify found 0           else             scope selected    Not found               Angular documentation is here http   docs angularjs org api ng filter filter

[javascript] In Angular, I need to search objects in an array

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