大约有 48,000 项符合查询结果（耗时：0.0632秒） [XML]
Bash history without line numbers
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207
Try this:
$ history | cut -c 8-
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if A vs if A is not None:
...peration bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. If a class defines neither __len__() nor __nonzero__(), all its instances are conside...
Node.js quick file server (static files over HTTP)
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1140
A good "ready-to-use tool" option could be http-server:
npm install http-server -g
To use it:...
Waiting until two async blocks are executed before starting another block
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10 Answers
10
Active
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Eclipse Workspaces: What for and why?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Dec 23 '14 at 20:47
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Using emit vs calling a signal as if it's a regular function in Qt
...n:
void W::foo()
{
QMetaObject::activate(this, &staticMetaObject, 0, 0);
}
And the code emit foo(); is pre-processed to simply foo();
emit is defined in Qt/qobjectdefs.h (in the open-source flavor of the source anyway), like this:
#ifndef QT_NO_EMIT
# define emit
#endif
(The define gu...
npm WARN package.json: No repository field
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It's just a check as of NPM v1.2.20, they report this as a warning.
However, don't worry, there are sooooooo many packages which still don't have the repository field in their package.json. The field is used for informational purposes.
In the case you're a...
Hide grid row in WPF
...ool)value == true) ? new GridLength(1, GridUnitType.Star) : new GridLength(0);
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{ // Don't need any convert back
return null;
}
}
And then in the app...
Remove everything after a certain character
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var s = '/Controller/Action?id=11112&value=4444';
s = s.substring(0, s.indexOf('?'));
document.write(s);
Sample here
I should also mention that native string functions are much faster than regular expressions, which should only really be used when necessary (this isn't one of those cases...