Conditionally set an object property

Question

Is there some syntax for setting properties based on a condition?

data: {
    userId: 7,
    actionId: 36,
    express: (myCondition ? true : null) // does n         


        

Answer 1

You can do it if you define your object using an anonymous function instead of object literal notation:

var data = new function(){
    this.userId = 7;
    this.actionId = 36;
    myCondition && (this.express = true);
};

The resulting data object is the exact same, except it's constructor will be the anonymous function instead of window.Object.