CODEWITHSUNDEEP
javascriptconfirm
user3284007
user3284007

Reputation: 1717

JavaScript confirm window

I am reviewing some code around a JavaScript confirm call. From my understanding, confirm returns true or false. The developer I am working with keeps doing the following:

function askTheUser(question, myCallback) {
  var result = confirm(question);
  myCallback(result ? 2 : 1);
}

The line that is throwing me for a loop is the result ? 2 : 1. Why would someone do that instead of just myCallback(result);

Is there something related to callbacks that I'm not aware of. I'm just interested in returning the true or false associated with whether a user confirmed the question or not. I keep looking at it. It just looks incorrect.

Thank you.

Upvotes: 0

Views: 259

Answers (3)

user3995474
user3995474

Reputation:

result ? 2 : 1 means that if result is true then 2 is returned otherwise 1

He/She must have a special reason to do so. Try looking the code where it's being used.

Upvotes: 0

T.J. Crowder
T.J. Crowder

Reputation: 1074158

It's not incorrect, it's just converting true/false into 2/1. Presumably they have some reason for doing that.

Upvotes: 1

ne1410s
ne1410s

Reputation: 7082

Yes you're right. It should just be (result). The callback can then assign 1, 2 or whatever it wants - if its really necessary to do so! It is simply going to invoke the callback with the parameter, there's nothing special about it

Upvotes: 0

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