JavaScript if/else shorthand

Question

I am fairly new to JS and I realize that the following might be some sort of shorthand notation, but I have not seen something like this before and therefore am not sure what this statement is saying. Can someone please explain it to me?

if ($scope.userInformationData) {
    $scope.callReport.Created_In_S1_App__c = ($scope.userInformationData.media == 'SALESFORCE1' ? true : false);
} else {
    $scope.callReport.Created_In_S1_App__c = true;
}

Having trouble understanding this if/else block (with the ? : notation) Thanks for the help and I appreciate the explanation

if condition ? when_True : when_false; `var canDrink = person.Age < 18 ? false : true;` — Catalin, Jul 11 '16 at 14:34
Ternary operator are present in some language such as Java, C (family) etc... Here is some info on it : https://en.wikipedia.org/wiki/%3F:#JavaScript — Chax, Jul 11 '16 at 14:37
The code you've supplied is a very poor example of its usage, to be honest, as it's trying to check a Boolean value for true or false, then set another value to true or false based on that value, which is complete redundancy. This... `$scope.callReport.Created_In_S1_App__c = ($scope.userInformationData.media == 'SALESFORCE1' ? true : false);` ... should simply be... `$scope.callReport.Created_In_S1_App__c = $scope.userInformationData.media == 'SALESFORCE1';` — ManoDestra, Jul 11 '16 at 14:41

score 0 · Answer 1 · answered Jul 11 '16 at 14:35

You coud use the ternary operator ?:

The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.

$scope.callReport.Created_In_S1_App__c = $scope.userInformationData ?
    $scope.userInformationData.media == 'SALESFORCE1' :
    true;

JavaScript if/else shorthand

1 Answers1