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How to compare two floating point numbers in Bash?
...ntific number notation and use -l flag to bc programm for predefined math routines
– alrusdi
Dec 28 '11 at 10:24
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What is the best way to test for an empty string in Go?
...diomatic and are clear enough. It is more a matter of personal taste and about clarity.
Russ Cox writes in a golang-nuts thread:
The one that makes the code clear.
If I'm about to look at element x I typically write
len(s) > x, even for x == 0, but if I care about
"is it this specific ...
In a .csproj file, what is for?
... explains the differences.
None - The file is not included in the project output group and is not compiled in the build process. An example is a text file that contains documentation, such as a Readme file.
Content - The file is not compiled, but is included in the Content output group. For example...
Start a git commit message with a hashmark (#)
...t gives when it asks the user to edit messages in the editor are commented out with '#' by default.
The core.commentChar configuration variable can be used to customize this '#' to a different character.
In theory, you could put a core.commentChar word (multiple characters), but git 2.0.x/2.1 will...
Find substring in the string in TWIG
...
Great :) I used it to figure out the current route: <li class="{% if 'gew_team_default_' in app.request.get('_route') %}active{% endif %}">
– Tobias Oberrauch
Aug 28 '14 at 14:11
...
How to tell if a file is git tracked (by shell exit code)?
... it in a script, for example PowerShell:
$gitResult = (git ls-files $_) | out-string
if ($gitResult.length -ne 0)
{
## do stuff with the tracked file
}
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How do I draw a shadow under a UIView?
...ou want the superclass's drawRect: to be 'wrapped' in a shadow, then how about if you rearrange your code like this?
- (void)drawRect:(CGRect)rect {
CGContextRef currentContext = UIGraphicsGetCurrentContext();
CGContextSaveGState(currentContext);
CGContextSetShadow(currentContext, CGSiz...
View list of all JavaScript variables in Google Chrome Console
...
Is this the kind of output you're looking for?
for(var b in window) {
if(window.hasOwnProperty(b)) console.log(b);
}
This will list everything available on the window object (all the functions and variables, e.g., $ and jQuery on this pag...
Is there a builtin identity function in python?
... Better to let people write their own trivial pass-throughs
and think about the signature and time costs.
So a better way to do it is actually (a lambda avoids naming the function):
_ = lambda *args: args
advantage: takes any number of parameters
disadvantage: the result is a boxed version ...
How can I transform string to UTF-8 in C#?
...ther thing you may have to remember: If you are using Console.WriteLine to output some strings, then you should also write Console.OutputEncoding = System.Text.Encoding.UTF8;!!! Or all utf8 strings will be outputed as gbk...
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