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Index › Programming Questions & Help › Syntax Questions › parseFloat for String vs String[]

plboerboom YaBB Newbies Offline Posts: 2	parseFloat for String vs String[] Sep 8th, 2008, 3:26pm   Can someone explain why parseFloat returns NaN for a single string, but 0.0 for arrays of strings, as in the following code? Many thanks. String testString = "abc"; String[] testStringArray = { "abc", "def", "ghi" }; println (parseFloat(testString)); println (parseFloat(testStringArray)); gives me: NaN [0] 0.0 [1] 0.0 [2] 0.0

PhiLho  YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: parseFloat for String vs String[] Reply #1 - Sep 8th, 2008, 6:35pm   Good question. It looks like a little inconsistency in the wrappers, unless there is some grand scheme that escapes me. Note that in both cases, you can add a second parameter (float) giving the default value in case the string isn't a valid number.

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: parseFloat for String vs String[] Reply #2 - Sep 9th, 2008, 4:10am   yup, my mistake, it should return NaN.

plboerboom YaBB Newbies Offline Posts: 2	Re: parseFloat for String vs String[] Reply #3 - Sep 9th, 2008, 1:35pm   Thanks for the replies. It seemed like an inconsistency but I wasn't sure that it wasn't for a reason. Passing Float.NaN as the second parameter gets me the result I need.