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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
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These events are called in the following order:
beforeTextChanged(CharSequence s, int start, int count, int after).
This means that the characters are about to be replaced with some new text. The text is uneditable.
Use: when you need to ta...
git-checkout older revision of a file under a new name
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You can use "git show" for that:
prompt> git show HEAD^:main.cpp > old_main.cpp
(Note that there is colon [:] character between HEAD^ and main.cpp.) The <revision>:<path> syntax is described in git rev-parse...
delete map[key] in go?
...e the statement,
m[k] = value, false
This syntax was a peculiar special case, the only two-to-one assignment. It required passing a value (usually ignored) that is evaluated but discarded, plus a boolean that was nearly always the constant false. It did the job but was odd and a point of contenti...
Shallow copy of a Map in Java
...en went further in saying that he only provides the clone() method just "because people expect it". He does NOT actually recommend using it at all.
I think the more interesting debate is whether a copy constructor is better than a copy factory, but that's a different discussion altogether.
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difference between offsetHeight and clientHeight
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@disc0dancer - Probably because the browser already has the clientSize readily available (after all, it it the viewport), but needs to calculate offsetHeight after reflowing the whole document?
– Oded
Nov 6 '13 a...
PostgreSQL wildcard LIKE for any of a list of words
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You can use Postgres' SIMILAR TO operator which supports alternations, i.e.
select * from table where lower(value) similar to '%(foo|bar|baz)%';
share...
Plot smooth line with PyPlot
...power, xnew)
plt.plot(xnew,power_smooth)
plt.show()
spline is deprecated in scipy 0.19.0, use BSpline class instead.
Switching from spline to BSpline isn't a straightforward copy/paste and requires a little tweaking:
from scipy.interpolate import make_interp_spline, BSpline
# 300 represe...
Animate scroll to ID on page load
...e scroll to a particular ID on page load. I have done lots of research and came across this:
6 Answers
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Filter git diff by type of change
...diff HEAD HEAD~1 --name-only --diff-filter=AMR will still list 'x'. Why? Because from HEAD towards HEAD~1 the file was added, not removed.
– Christoph Grimmer-Dietrich
Apr 23 '14 at 8:42
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Toggle button using two image on different state
... android:focusableInTouchMode="false"
android:layout_centerVertical="true"/>
create check.xml in drawable folder
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- When selected, use grey -->
&l...