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Updating Properties

You can update and add new keys (you'll see me use the words "property" and "key" interchangeably in this course) to an existing object using the . operator. If it exists, it's updated; if it doesn't, it's created as a new property:

const apple = {
  name: "Apple",
  radius: 2,
  color: "red",
};

apple.numSeeds = 3; // new property
apple.color = "green"; // update property
// {"name":"Apple","radius":2,"color":"green","numSeeds":3}

Assignment

In Textio, users create text campaigns to send messages to their contacts. Each campaign needs a unique ID for tracking and management.

Complete the addID function. It takes a campaignRecord object as input and returns it with a newly generated string id property. The id should be created by joining campaignName and senderName with a hyphen (-). For example:

summerSales-adam

Where campaignName and senderName are already properties of the campaignRecord object.