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What does the question mark operator mean in Ruby?
What is the purpose of the question mark operator in Ruby?
9 Answers
9
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SVG gradient using CSS
...url(#MyGradient);
}
<svg width="100" height="50" version="1.1" xmlns="http://www.w3.org/2000/svg">
<style type="text/css">
rect{fill:url(#MyGradient)}
</style>
<defs>
<linearGradient id="MyGradient">
<stop offset="5...
pip install from git repo branch
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Prepend the url prefix git+ (See VCS Support):
pip install git+https://github.com/tangentlabs/django-oscar-paypal.git@issue/34/oscar-0.6
And specify the branch name without the leading /.
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How can I dynamically set the position of view in Android?
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For anything below Honeycomb (API Level 11) you'll have to use setLayoutParams(...).
If you can limit your support to Honeycomb and up you can use the setX(...), setY(...), setLeft(...), setTop(...), etc.
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How to change an input button image using CSS?
...NG" width="90" height="50" alt="submit" />
</button>
More info: http://htmldog.com/reference/htmltags/button/
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
...table, so in your bar table you must have a unique (name) index.
See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and specifically:
Finally, we should mention that a foreign key must reference columns
that either are a primary key or form a unique con...
How to do date/time comparison
...intf("Lifespan is %+v", diff)
The program outputs:
Lifespan is 3h0m0s
http://play.golang.org/p/bbxeTtd4L6
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Replace tabs with spaces in vim
I would like to convert tab to spaces in gVim. I added the following line to my _vimrc :
11 Answers
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Objective-C: Calling selectors with multiple arguments
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Is there a way to word-wrap long words in a div?
... use of word-wrap for IE, designed to break unbroken strings).
/* Source: http://snipplr.com/view/10979/css-cross-browser-word-wrap */
.wordwrap {
white-space: pre-wrap; /* CSS3 */
white-space: -moz-pre-wrap; /* Firefox */
white-space: -pre-wrap; /* Opera <7 */
wh...