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Objective-C: Calling selectors with multiple arguments
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Your method signature is:
- (void) myTest:(NSString *)
withAString happens to be the parameter (the name is misleading, it looks like it is part of the selector's signature).
If you call the function in this manner:
[self performSelector:@selector(myTe...
What is the difference between allprojects and subprojects
... in many builds the root project doesn't contain any code. The Eclipse and IDEA plugins, on the other hand, are typically applied to allprojects. If in doubt, look at examples and other builds and/or experiment. The general goal is to avoid irrelevant configuration. In that sense, subprojects is bet...
Plot correlation matrix into a graph
... I've submitted an edit for link 1 to: improving-visualisation.org/vis/id=250 which provides the same image.
– russellpierce
May 30 '14 at 14:33
1
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Possible Loss of Fraction
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When you divide two int's into a floating point value the fraction portion is lost. If you cast one of the items to a float, you won't get this error.
So for example turn 10 into a 10.0
double returnValue = (myObject.Value / 10.0);
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error: default argument given for parameter 1
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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Creating hidden arguments with Python argparse
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I do it by adding an option to enable the hidden ones, and grab that by looking at sysv.args.
If you do this, you have to include the special arg you pick out of sys.argv directly in the parse list if you Assume the option is -s to enable hidden options.
parser.add...
How do I test a file upload in rails?
...le.new(Rails.root.join("test/fixtures/files/test.jpg"))
})
assert model.valid?
This way you can use the same methods you are using in your validations (as for example tempfile).
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improve th...
How to git commit a single file/directory
... to be more explicit, git commit -m 'my notes' -- path/to/my/file.ext.
Incidentally, git v1.5.2.1 is 4.5 years old. You may want to update to a newer version (1.7.8.3 is the current release).
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MongoDB relationships: embed or reference?
...umentation on Schemas is a good reference, but here are some things to consider:
Put as much in as possible
The joy of a Document database is that it eliminates lots of Joins. Your first instinct should be to place as much in a single document as you can. Because MongoDB documents have structure,...
Multiple commands on a single line in a Windows batch file
...15:23:39.85
That's needed from the command line. If you're doing this inside a script, you can just use setlocal:
@setlocal enableextensions enabledelayedexpansion
@echo off
echo !time! & ping 127.0.0.1 >nul: & echo !time!
endlocal
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