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Difference between getDefaultSharedPreferences and getSharedPreferences
...ivity context
PreferenceManager.getDefaultSharedPreferences(context)
See https://developer.android.com/reference/android/support/v7/preference/PreferenceManager#getdefaultsharedpreferences
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What's the difference between a temp table and table variable in SQL Server?
...at answer on dba.stackexchange.com
MSDN FAQ on difference between the two: https://support.microsoft.com/en-gb/kb/305977
MDSN blog article: https://docs.microsoft.com/archive/blogs/sqlserverstorageengine/tempdb-table-variable-vs-local-temporary-table
Article: https://searchsqlserver.techtarget.com/t...
How do I do an OR filter in a Django query?
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This might be useful https://docs.djangoproject.com/en/dev/topics/db/queries/#spanning-multi-valued-relationships
Basically it sounds like they act as OR
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How to download a branch with git?
... (in this example I've picked the LRResty project on Github):
$ git clone https://github.com/lukeredpath/LRResty.git
$ cd LRResty
Check what branch you are using at this point (it should be the master branch):
$ git branch
* master
Check out the branch you want, in my case it is called 'ar...
Can I get JSON to load into an OrderedDict?
... cPython implementation has preserved the insertion order of dictionaries (https://mail.python.org/pipermail/python-dev/2016-September/146327.html). This means that the json library is now order preserving by default. Observe the difference in behaviour between python 3.5 and 3.6. The code:
import ...
Read Excel File in Python
...t_name='Sheet1')
print("Column headings:")
print(DataF.columns)
Test at :https://repl.it
Reference: https://pythonspot.com/read-excel-with-pandas/
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What do I use for a max-heap implementation in Python?
...submitted it to PyPI. (Very slight change of heapq module CPython code.)
https://pypi.python.org/pypi/heapq_max/
https://github.com/he-zhe/heapq_max
Installation
pip install heapq_max
Usage
tl;dr: same as heapq module except adding ‘_max’ to all functions.
heap_max = [] ...
How can I make a jQuery UI 'draggable()' div draggable for touchscreen?
...y ui 1.9 is going to take care of this for you. Heres a demo of the pre:
https://dl.dropbox.com/u/3872624/lab/touch/index.html
Just grab the jquery.mouse.ui.js out, stick it under the jQuery ui file you're loading, and that's all you should have to do! Works for sortable as well.
This code is w...
Explain ExtJS 4 event handling
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
using lodash .groupBy. how to add your own keys for grouped output?
...) => ({ color: key, users: value }))
.value()
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>
Original Answer
var result = _.chain(data)
.groupBy("color")
.pairs()
.map(function(currentItem) {
retur...