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Why C# fails to compare two object types with each other but VB doesn't?
...but that's based on the compile-time type of the expressions. For example, string provides ==(string, string):
string x = new string("foo".ToCharArray());
string y = new string("foo".ToCharArray());
Console.WriteLine(x == y); // True
Console.WriteLine((object) x == (object) y); // False
Here the ...
Programmatically Lighten or Darken a hex color (or rgb, and blend colors)
...tically lighten or darken a hex color by a specific amount. Just pass in a string like "3F6D2A" for the color ( col ) and a base10 integer ( amt ) for the amount to lighten or darken. To darken, pass in a negative number (i.e. -20 ).
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Understanding reference counting with Cocoa and Objective-C
... If I don't, there will be a memory leak.
Example of object creation:
NSString* s = [[NSString alloc] init]; // Ref count is 1
[s retain]; // Ref count is 2 - silly
// to do this after init
[s release]; ...
How to overwrite the previous print to stdout in python?
...):
print('{}\r'.format(x), end="")
print()
In Python 3.6 and later, f-strings read better:
for x in range(10):
print(f'{x}\r', end="")
print()
Of course, as Tim Seguine points out in the comments, for a case this simple, you don't even need to do formatting:
for x in range(10):
print(x...
Eclipse: have the same file open in two editors?
...r file and then Window->New Editor (Note: in newer versions it will be called New Window)
Then, click on its tab and drag it somewhere else to have two editors of the same file
Update: as mentioned by moschlar, From version 4.4, two editors can be created with Window -> Editor -> Clone.
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How to set a default value for an existing column
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MSSQL is weird for calling default values "constraints". If anything, they are relaxations; the opposite of a constraint! They make more things valid, not fewer.
– Roman Starkov
May 11 '13 at 12:06
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Check if a Postgres JSON array contains a string
...one know how this works in case you need to select an integer instead of a string/text?
– Rotareti
Nov 16 '18 at 1:34
3
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UILabel Align Text to center
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From iOS 6 and later UITextAlignment is deprecated. use NSTextAlignment
myLabel.textAlignment = NSTextAlignmentCenter;
Swift Version from iOS 6 and later
myLabel.textAlignment = .center
...
I want to use CASE statement to update some records in sql server 2005
... of the temporary tables in cases where duplicate values are not permitted and your update may create them. For example:
SELECT
[Id]
,[QueueId]
,[BaseDimensionId]
,[ElastomerTypeId]
,CASE [CycleId]
WHEN 29 THEN 44
WHEN 30 THEN 43
WHEN 31 THEN 43
...
How can I convert this foreach code to Parallel.ForEach?
...
string[] lines = File.ReadAllLines(txtProxyListPath.Text);
List<string> list_lines = new List<string>(lines);
Parallel.ForEach(list_lines, line =>
{
//Your stuff
});
...