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Base64: What is the worst possible increase in space usage?
...f 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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Date vs DateTime
...eTimeKind.Unspecified so that when serialized it gets deserialized without converting (may change date based upon different in timezones).
– oatsoda
Jul 30 '14 at 9:20
1
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Compare if BigDecimal is greater than zero
...on input for this simple things, it may help for complex scenario. you are converting to intvalue again. so cost to convert, and this will fail for 0.33 as it will convert to int 0
– P Satish Patro
Aug 26 at 14:35
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Should operator
...ment for making these free standing functions as this lets auto conversion convert both sides if they are not the same type, while member functions only allow the rhs to be auto converted. I find this a paper man argument as you don't really want auto conversion happening in the first place (usually...
How to calculate the difference between two dates using PHP?
... up to date solution see jurka's answer below
You can use strtotime() to convert two dates to unix time and then calculate the number of seconds between them. From this it's rather easy to calculate different time periods.
$date1 = "2007-03-24";
$date2 = "2009-06-26";
$diff = abs(strtotime($date...
How to set DialogFragment's width and height?
...
If you convert directly from resources values:
int width = getResources().getDimensionPixelSize(R.dimen.popup_width);
int height = getResources().getDimensionPixelSize(R.dimen.popup_height);
getDialog().getWindow().setLayou...
Best practices/performance: mixing StringBuilder.append with String.concat
...done automatically by the compiler.
The Java2 compiler will automatically convert the following:
String s = s1 + s2;
to
String s = (new StringBuffer()).append(s1).append(s2).toString();
Taken straight from the Java Best Practices on Oracles website.
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Literal suffix for byte in .NET?
...condition ? 0 : 1);, which to me looks a bit nicer, or this.pixels[x, y] = Convert.ToByte(!condition);
– Shimmy Weitzhandler
Aug 9 '17 at 12:44
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switch / pattern matching idea
...s. [Side note - if you look at the output of the C# compiler it frequently converts switch statements to dictionary-based jump tables, so there doesn't appear to be a good reason it couldn't support switching on types]
share...
Mathematical functions in Swift
...re currently available on Float and Double and it should be easy enough to convert to a CGFloat for example.
Instead of sqrt() there's the squareRoot() method on the FloatingPoint protocol. Again, both Float and Double conform to the FloatingPoint protocol:
let x = 4.0
let y = x.squareRoot()
For...