CODEWITHSUNDEEP
iosjsonswiftserialization
Sergey Chehuta
Sergey Chehuta

Reputation: 33

Create JSON and format double values

Is there any way to set a format of double values when I create JSON with NSJSONSerialization?

For example:

    let dict :Dictionary<String,NSNumber> = ["key1" : 75.01, "key2" : 80.93, "key3" : 79.07, "key4" : 79.10 ]
    let JSONData = try! NSJSONSerialization.dataWithJSONObject(dict, options: .PrettyPrinted)
    let JSONText = NSString(data: JSONData, encoding: NSASCIIStringEncoding)
    NSLog("JSON string = \(JSONText!)")

I get the following output:

JSON string = { "key1" : 75.01000000000001, "key2" : 80.93000000000001, "key4" : 79.09999999999999, "key3" : 79.06999999999999 }

I would like to avoid these 000001, 0999999, etc. Thanks in advance.

Upvotes: 2

Views: 5370

Answers (1)

Eric Aya
Eric Aya

Reputation: 70113

Use "Float" instead of "NSNumber":

let dict: Dictionary<String,Float> = ["key1" : 75.01, "key2" : 80.93, "key3" : 79.07, "key4" : 79.10 ]

Result:

JSON string = { "key1" : 75.01, "key4" : 79.1, "key2" : 80.93, "key3" : 79.07 }

Upvotes: 2

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