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JavaScript OOP in NodeJS: how?
...ance:
var method = List.prototype;
function List() {
}
method.add = Array.prototype.push;
...
var a = new List();
a.add(3);
console.log(a[0]) //3;
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Prepend a level to a pandas MultiIndex
...'s solution, this is a flexible method and avoids modifying the underlying array for the dataframe.
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How to use enum values in f:selectItem(s)
...can just modify getStatuses() return type to List<Status> and return Arrays.asList(Status.values());
– stakahop
Oct 4 '16 at 12:42
...
How do you test functions and closures for equality?
...e, which was kind of devastating because I had been storing closures in an Array and now can't remove them with indexOf({$0 == closure} so I have to refactor. IMHO optimization shouldn't influence language design, so without a quick fix like the now deprecated @objc_block in matt's answer, I would ...
Initial bytes incorrect after Java AES/CBC decryption
...n cipher.doFinal(plainText);
}
/**
* Decrypts the given byte array
*
* @param cipherText The data to decrypt
*/
public byte[] decrypt(byte[] cipherText) throws Exception
{
SecretKeySpec secretKey = new SecretKeySpec(key, ALGORITHM);
Cipher cipher ...
How to echo with different colors in the Windows command line
... 1 );
} else if (e.message == "Index was outside the bounds of the array.") {
print( "invalid arguments" );
Environment.Exit( 2 );
} else {
print ( "Error Message: " + e.message );
print ( "Error Code: " + ( e.number & 0xFFFF ) );
...
How to get my IP address programmatically on iOS/macOS?
..._ADDR_IPv6 @"ipv6"
- (NSString *)getIPAddress:(BOOL)preferIPv4
{
NSArray *searchArray = preferIPv4 ?
@[ /*IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6,*/ IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @...
What is PECS (Producer Extends Consumer Super)?
...hould be invariant.
To illustrate this general phenomenon, consider the array type. For the type Animal we can make the type Animal[]
covariant: a Cat[] is an Animal[];
contravariant: an Animal[] is a Cat[];
invariant: an Animal[] is not a Cat[] and a Cat[] is not an Animal[].
Java Examples...
Determining type of an object in ruby
... #=> True
p "1".instance_of? String #=> True
p [1,2].instance_of? Array #=> True
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Casting vs using the 'as' keyword in the CLR
...1,specs: OS:Windows Seven, CPU:i5-520M, 4GB of DDR3 1033 ram, benchmark on array of 128,000,000 items.
– Behrooz
Jun 25 '10 at 13:32
2
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