I can't seem to find a way to format a Double limiting the precision to just a couple of positions after the decimal point when presenting that in a label. Maybe I'm missing something major, but I couldn't find anything in the official documentation.
Thanks in advance for the help!
Just use %. 2f as the format specifier. This will make the Java printf format a double to two decimal places.
format(“%. 2f”) We also can use String formater %2f to round the double to 2 decimal places. However, we can't configure the rounding mode in String.
There's no way to do this using String
interpolation.
You can find a good discussion about this on this Apple Dev Forum post.
You can use NSNumberFormatter
or NSDateFormatter
to format the output.
Alternatively, to use printf
-like syntax, you can still use NSString
:
var str = NSString(format: "Hello, world %.2f", 42.12312312313)
Unsure if there is a pure Swift-way but you can always use NSStrings +stringWithFormat:
:
let str = String(format: "%.2f", 1.23)
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