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Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
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How to format current time using a yyyyMMddHHmmss format?
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Convert a List into an ObservableCollection
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edited Sep 13 '17 at 4:14
Casper
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Which characters are valid/invalid in a JSON key name?
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Validating IPv4 addresses with regexp
I've been trying to get an efficient regex for IPv4 validation, but without much luck. It seemed at one point I had had it with (25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?(\.|$)){4} , but it produces some strange results:
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Convert Dictionary to semicolon separated string in c#
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Xcode 6 / Beta 4: using bridging headers with framework targets is unsupported
I just upgraded to Xcode 6 Beta 4 and have a framework that I created for Live Views in Beta 2. Due to another swift bug , I needed to use some Obj-C code. When upgrading though, I get the following error:
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string.Format() giving “Input string is not in correct format”
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answered Aug 5 '11 at 4:37
Christian.KChristian.K
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