CODEWITHSUNDEEP
angularjs
Rk dev tech
Rk dev tech

Reputation: 184

angularjs: How to check duplicate row befor pushing new row to json object

I have a json array object $scope.products= []; and ng-click function called addRow.

I want to perform a check before push new row to array is new row is already exists in array, or not when addRow function is called.

If it already exists, then new row is not push to array.

$scope.addRow = function(){
$scope.products.push({'pro_name':$scope.pro_name,'pro_id':$scope.pro_id, 'batch_no': $scope.input_batch_no });
}

Upvotes: 0

Views: 274

Answers (2)

korteee
korteee

Reputation: 2682

Since you have a unique identifier you can check whether the list of added rows includes such element with this identifier.

 $scope.addRow = function(product) {

    if($scope.selectedProducts.find(p => p.pro_id === product.pro_id)) {
       return;
    };

    $scope.selectedProducts.push(product);

 }

Here's a working piece of code

Upvotes: 1

Nachshon Schwartz
Nachshon Schwartz

Reputation: 15765

Just Check if it exists already in the array:

$scope.addRow = function(){
    var exists = false;
    $scope.products.forEach(product => {
        if (product.pro_name === $scope.pro_name && product.pro_id === $scope.pro_id && product.batch_no === $scope.batch_no) {
            exists = true;
        }
    })
    if (!exists) {
        $scope.products.push({
            'pro_name':$scope.pro_name,
            'pro_id':$scope.pro_id,
            'batch_no': $scope.input_batch_no
        });
    }
}

Upvotes: 0

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