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Why there is no ForEach extension method on IEnumerable?
...e ForEach<> extension to be a little nicer than having to manage the index in a regular foreach myself:
public static int ForEach<T>(this IEnumerable<T> list, Action<int, T> action)
{
if (action == null) throw new ArgumentNullException("action");
var index = 0;
...
Git: Ignore tracked files
...
Sure.
git update-index --assume-unchanged [<file> ...]
To undo and start tracking again:
git update-index --no-assume-unchanged [<file> ...]
share
...
How to iterate over rows in a DataFrame in Pandas
...
DataFrame.iterrows is a generator which yields both the index and row (as a Series):
import pandas as pd
import numpy as np
df = pd.DataFrame({'c1': [10, 11, 12], 'c2': [100, 110, 120]})
for index, row in df.iterrows():
print(row['c1'], row['c2'])
10 100
11 110
12 120
...
html5 - canvas element - Multiple layers
...width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 0;"></canvas>
<canvas id="layer2" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 1;"></canvas>
</div>
Draw your first layer on the layer1 canvas, and the...
Shorten string without cutting words in JavaScript
... string without cutting any word off. I know how to use substring, but not indexOf or anything really well.
23 Answers
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Pandas conditional creation of a series/dataframe column
...trying to be set on a copy of a slice from a DataFrame. Try using .loc[row_indexer,col_indexer] = value instead
– denson
Oct 19 '16 at 16:48
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Using node.js as a simple web server
... a very simple HTTP server. Every GET request to example.com should get index.html served to it but as a regular HTML page (i.e., same experience as when you read normal web pages).
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Markdown and including multiple files
...ations_of_markdown.mdpp
chapters/conclusions.mdpp
You would then need an index.mdpp that contained the following:
!INCLUDE "chapters/preface.mdpp"
!INCLUDE "chapters/introduction.mdpp"
!INCLUDE "chapters/why_markdown_is_useful.mdpp"
!INCLUDE "chapters/limitations_of_markdown.mdpp"
!INCLUDE "chapt...
nginx showing blank PHP pages
...ude /path/to/fastcgi_params;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
}
Double-check the /path/to/fastcgi-params, and make sure that it is present and readable by the nginx user.
...
Removing an item from a select box
...yId('delete');
function remove()
{
value = select.selectedIndex;
select.removeChild(select[value]);
}
delButton.onclick = remove;
}
To add the item I would create second select box and:
var select2 = document.getElementById('selectBox2');
var addSelect = docu...