The Array.find() method is not returning the desired value as it is not a recognized function

Is it permissible to use JavaScript's find() function on an AngularJS array? I am encountering some issues with this straightforward code snippet. The error message claims that the return value from $scope.names.find(name1) is not a function.

TypeError: Name1 is not a function

if($scope.names.find(name1) !== name1) {
   $scope.names.push(name1);
}

I have attempted alternative solutions...

if($scope.names.find(name1) === undefined) {
   $scope.names.push(name1);
}

and

if(!$scope.names.find(name1)) {
   $scope.names.push(name1);
}

This conditional statement resides within a loop. It adds 'name' to the array if it doesn't already exist, and skips adding it if it does.

The loop looks like this:

angular.forEach($scope.names1, function (name1) {
    angular.forEach($scope.names2, function (name2) {
        if (name1 === name2) {
            $scope.names.push(name1);
        }
    });
    if ($scope.names.find(name1) === name1) {
        $scope.names.push(name1);
    }
});

The specific cause of the error eludes me. There must be a misuse of find().

Answer №1

To determine if a value exists in your array, you can utilize the indexOf method. Here's how you can implement it:

if($scope.names.indexOf(name1) === -1) { //Value does not exist in the array
   $scope.names.push(name1);
}

Answer №2

Another option to think about is implementing underscore.js. It offers a variety of handy functions such as _.find()

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