Assigning a characteristic to every element within a collection

I have a project in progress where users need to click on a specific location, which will then take them to that location using Google Maps. The locations are stored as an array of objects, and here is how the location files are structured.

$scope.SiteLocs = [
          {
            "name": "502 Nelson St, Greenville, MS 38701",
            "visibility": "0",
            "description": "502 Nelson St, Greenville, MS 38701",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-91.05636,33.415485,0" }
          },
          {
            "name": "242 Blackhawk Trace, Galena, IL 61036",
            "visibility": "0",
            "description": "242 Blackhawk Trace, Galena, IL 61036",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-90.319778,42.390862,0" }
          },
          {
            "name": "3747 Ocean Dr, Vero Beach, FL 32963",
            "visibility": "0",
            "description": "3747 Ocean Dr, Vero Beach, FL 32963",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-80.358248,27.659094,0" }
          }, etc...

My goal is to add another element to each item in the array. I attempted to use the .concat() method, but it didn't yield the desired outcome. If I wish to include "carrier": "sprint" for each location, how can I achieve that?

I also neglected to mention this piece of code. It involves splitting and rearranging the coordinates in the files.

angular.forEach($scope.SiteLocs, function(location) {
      var clength = location.Point.coordinates.length;
      if (location.Point.coordinates.substring(clength - 2, clength) === ",0") {
        location.Point.coordinates = location.Point.coordinates.substring(0, clength - 2).split(",");
        Lat = location.Point.coordinates[0]
        Lon = location.Point.coordinates[1]
        Com = ","
        location.Point.coordinates = Lon.concat(Com,Lat)
      }

Answer №1

Have you considered using the angular.forEach function? Check out the documentation here: https://docs.angularjs.org/api/ng/function/angular.forEach

You can also view a working example on JSFiddle here: http://jsfiddle.net/Wqu68/3/

Snippet of relevant code:

function appCtrl($scope, $http){

    $scope.SiteLocs = [
          {
            "name": "502 Nelson St, Greenville, MS 38701",
            "visibility": "0",
            "description": "502 Nelson St, Greenville, MS 38701",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-91.05636,33.415485,0" }
          },
          {
            "name": "242 Blackhawk Trace, Galena, IL 61036",
            "visibility": "0",
            "description": "242 Blackhawk Trace, Galena, IL 61036",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-90.319778,42.390862,0" }
          },
          {
            "name": "3747 Ocean Dr, Vero Beach, FL 32963",
            "visibility": "0",
            "description": "3747 Ocean Dr, Vero Beach, FL 32963",
            "styleUrl": "#waypoint",
            "Point": { "coordinates": "-80.358248,27.659094,0" }
          }]

      angular.forEach($scope.SiteLocs, function(place) {
          place.carrier = "Sprint";
     });

}

Answer №2

Within the existing loop

angular.forEach($scope.SiteLocs, function(location) {...}
, you have the ability to accomplish it right there. Simply include location.carrier = "sprint"; within that function.

Answer №3

On occasion, I turn to either lodash or angular for my coding needs. They share many similarities.

**Approach** utilizing Lodash.js

//using forEach to iterate through each element in the array
_.forEach($scope.SiteLocs, function(object){

***//assigning 'sprint' as the value of the carrier property for every object in the array
// a variable could be used instead of this static value***

    object.carrier = 'sprint';
  });

**Approach** using angular.js
//using forEach to loop through each element in the array

angular.forEach($scope.SiteLocs, function(object){

***//setting 'sprint' as the value of the carrier property for each object in the array
// a variable could replace this constant value***

    object.carrier = 'sprint';
  });

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