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Type converting slices of interfaces
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Try interface{} instead. To cast back as slice, try
func foo(bar interface{}) {
s := bar.([]string)
// ...
}
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Java client certificates over HTTPS/SSL
...contains the client certificate and client private key, created with BouncyCastle:
public static byte[] convertPEMToPKCS12(final String keyFile, final String cerFile,
final String password)
throws IOException, CertificateException, KeyStoreException, NoSuchAlgorithmException,
NoSuchProv...
Why does one often see “null != variable” instead of “variable != null” in C#?
...ed order. This is all confusing to have the operator call itself. Instead, cast either operand (or both) to object to get the desired overload. Like if ((object)a == null) or if (a == (object)null).
– Jeppe Stig Nielsen
May 3 '13 at 21:38
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SVG get text element width
...average of any valid results of the three methods. You could improve it to cast out outliers or to favor getComputedTextLength if the element is a text element.
Warning: As the comment says, getBoundingClientRect is tricky. Either remove it from the methods or use this only on elements where getBou...
Why is 'this' a pointer and not a reference?
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@Omnifarious you could write &reinterpret_cast<char&>(this); to get the real address for overloading operator& (in fact, this is sort of what boost::addressof does).
– Johannes Schaub - litb
Jul 1 '10 at 22:57
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The performance impact of using instanceof in Java
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If "object" is an instance of ObjT, casting it is a little faster than doing an instanceof, but the difference my quick test found was 10-20ms over 10,000,000 iterations. If "object" isn't an ObjT, though, catching the exception was over 3000x slower - over 31,...
How to get the name of enumeration value in Swift?
... case .Full:
return "Full"
}
}
}
And then casting the enum as String:
String(UIDevice.currentDevice().batteryState)
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Why is there a `null` value in JavaScript?
.... I spend a lot less time checking for existance in JS than I typically do casting in stricter language paradigms.
– Erik Reppen
Jan 18 '14 at 18:33
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How to properly seed random number generator
...should also be noted that excluding 0 (zero) is a good idea because you're casting the byte slice to a string, and that causes the 0 to become a null byte. E.g., try creating a file with a '0' byte in the middle and see what happens.
– Eric Lagergren
Jun 27 '15...
Is there a “null coalescing” operator in JavaScript?
...aScript.
Clarification
Regardless of the type of the first operand, if casting it to a Boolean results in false, the assignment will use the second operand. Beware of all the cases below:
alert(Boolean(null)); // false
alert(Boolean(undefined)); // false
alert(Boolean(0)); // false
alert(Boolea...