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See :hover state in Chrome Developer Tools
...t not if you make changes onhover using JS.
– matthew_360
Feb 6 '15 at 16:31
Here's a quick video I threw together dem...
How do I call a dynamically-named method in Javascript?
I am working on dynamically creating some JavaScript that will be inserted into a web page as it's being constructed.
9 An...
Can you make valid Makefiles without tab characters?
... 2. The tab character is a very important part of the syntax of Makefiles. All command lines (the lines beginning with cc in our example) must start with tabs. After he made his change, line 2 didn’t, hence the error.
“So what?” you ask, “What’s wrong with that?”
There is nothi...
ruby 1.9: invalid byte sequence in UTF-8
...n't have any encoding specific options and the stuff that comes in is basically not properly tagged.
What would be the best way to actually work with that incoming data? I tried .encode with the replace and invalid options set, but no success so far...
...
Get the date (a day before current time) in Bash
... a one-liner, so cut and paste should work -- no line endings assumed. date_days_past () { days_past=${1:-0}; if ! date -v-${days_past}d +%Y%m%d 2>/dev/null; then date --date="-${days_past} day" +%Y%m%d; fi }
– Noah Spurrier
May 16 '16 at 21:29
...
Mac OS X Terminal: Map option+delete to “backward delete word”
... trial and error). now i wonder why there is so little documentation about all this.
– victor n.
Oct 7 '15 at 16:14
...
Histogram Matplotlib
... compute the widths using np.diff, pass the widths to ax.bar and use ax.set_xticks to label the bin edges:
import matplotlib.pyplot as plt
import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
bins = [0, 40, 60, 75, 90, 110, 125, 140, 160, 200]
hist, bins = np.histogram(x,...
Fragment over another fragment issue
...lns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true" />
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Ruby on Rails: How can I revert a migration with rake db:migrate?
...to revert.
eg. if you want to revert a migration with file name 3846656238_create_users.rb
rake db:migrate:down VERSION=3846656238
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How to find day of week in php in a specific timezone
...
Another quick way:
date_default_timezone_set($userTimezone);
echo date("l");
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