Exploring AngularJS JSON Parsing Techniques (such as utilizing ng-repeat)

Question

Exploring AngularJS JSON Parsing Techniques (such as utilizing ng-repeat)

My approach to processing json data looks like this:

$scope.activities = response.data;
console.log($scope.activities.length);
var list = [];
for (var i = 0; i < $scope.activities.length; i++) {
    console.log($scope.activities[i].name);
    list.push($scope.activities[i].name);
}
var input = document.getElementById("myinput");
new Awesomplete(input, {
    list: list
});

Alternatively, consider the following scenario:

<li ng-repeat="navItem in navItems" ng-click="itemClicked(item, $index)" ng-class="{'nav_list_item-current' : navItem.selected} " class="nav_list_item pure-u-md-1-{{navItemsCount}} pure-u-1-1">
    <a class="nav_list_item_link" href="{{navItem.link}}">
        {{navItem.name}}
    </a>
</li>

Here, navItems represents a JSON object.

Although it works, how can I improve this implementation in Angular?

javascript angularjs json

Answer 1

Answer №1

Consider encapsulating your awesomecomplete code in a directive for a more organized Angular structure, though it may require more than just five minutes to implement. Below is a simplified version of assigning data from a database call:

YourDatabaseCall().then(function(activitiesDataFromDb){
    // Using the _.pluck method to extract an array of activity names
    $scope.activities = _.pluck(activitiesDataFromDb, 'name');

    var input = document.getElementById("myinput");
    new Awesomplete(input, {
        list: list
    }); 
});

For more information on underscore's pluck method, visit http://underscorejs.org/#pluck, where they describe it as:

A convenient way to extract property values, similar to using map for this common use-case. Here's an example they provide:

var stooges = [{name: 'moe', age: 40}, {name: 'larry', age: 50}, {name: 'curly', age: 60}];
_.pluck(stooges, 'name');
=> ["moe", "larry", "curly"]

Answer 2

Consider encapsulating your awesomecomplete code in a directive for a more organized Angular structure, though it may require more than just five minutes to implement. Below is a simplified version of assigning data from a database call:

YourDatabaseCall().then(function(activitiesDataFromDb){
    // Using the _.pluck method to extract an array of activity names
    $scope.activities = _.pluck(activitiesDataFromDb, 'name');

    var input = document.getElementById("myinput");
    new Awesomplete(input, {
        list: list
    }); 
});

For more information on underscore's pluck method, visit http://underscorejs.org/#pluck, where they describe it as:

A convenient way to extract property values, similar to using map for this common use-case. Here's an example they provide:

var stooges = [{name: 'moe', age: 40}, {name: 'larry', age: 50}, {name: 'curly', age: 60}];
_.pluck(stooges, 'name');
=> ["moe", "larry", "curly"]

Answer 3

Answer №2

Implement the use of Array.prototype.map method

var input = document.getElementById("myinput");

$scope.activities = response.data;

var activityNames = $scope.activities.map(function(item){
    return item.name;
});

new Awesomplete(input, {
    list: activityNames
});

For a more concise solution, you can also use:

var input = document.getElementById("myinput");

new Awesomplete(input, {
    list: response.data.map(function(item){
        return item.name;
    })
});

Answer 4

Implement the use of Array.prototype.map method

var input = document.getElementById("myinput");

$scope.activities = response.data;

var activityNames = $scope.activities.map(function(item){
    return item.name;
});

new Awesomplete(input, {
    list: activityNames
});

For a more concise solution, you can also use:

var input = document.getElementById("myinput");

new Awesomplete(input, {
    list: response.data.map(function(item){
        return item.name;
    })
});

Exploring AngularJS JSON Parsing Techniques (such as utilizing ng-repeat)

Answer №1

Answer №2

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