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Merge PDF files
...t ImportError:
from pyPdf import PdfFileReader, PdfFileWriter
def pdf_cat(input_files, output_stream):
input_streams = []
try:
# First open all the files, then produce the output file, and
# finally close the input files. This is necessary because
# the data isn'...
SQL Joins Vs SQL Subqueries (Performance)?
...- this makes no difference for a unique ID, but will give you tons of duplicates elsewhere. Sorting these out with DISTINCT or GROUP BY will be another, heavy performance load. Check execution plans in SQL Server Management Studio!
– Erik Hart
Dec 27 '13 at 9:3...
Is there a way to instantiate objects from a string holding their class name?
...
Why does C++ not have reflection?
How can I add reflection to a C++ application?
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Rebasing a branch including all its children
...s, and won't
# run unless auto-rebase is empty. Leave this here to catch programming
# errors, and for possible future -f option.
git for-each-ref --format="%(refname)" $REF_NAMESPACE |
while read ref; do
echo git update-ref -d $ref
done
else
...
Unix command-line JSON parser? [closed]
...es for every command
It allows you to do powerful things really easily:
cat earthporn.json | underscore select '.data .title'
# [ 'Fjaðrárgljúfur canyon, Iceland [OC] [683x1024]',
# 'New town, Edinburgh, Scotland [4320 x 3240]',
# 'Sunrise in Bryce Canyon, UT [1120x700] [OC]',
# ...
# 'K...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
... type parameter. One should not be allowed to use a mutable Dictionary(Of Cat, String) as a mutable Dictionary(Of Animal, String) since the latter would allow SomeDictionaryOfCat.Add(FionaTheFish, "Fiona"). But there's nothing wrong with using a mutable Dictionary(Of Cat, String) as an immutable Di...
HTML form readonly SELECT tag/input
...lect id="animal-select" disabled="true">
<option value="cat" selected>Cat</option>
<option value="dog">Dog</option>
<option value="hamster">Hamster</option>
</select>
<input type="hidden" name="a...
实战Nginx与PHP（FastCGI）的安装、配置与优化 - 更多技术 - 清泛网 - 专注...
实战Nginx与PHP（FastCGI）的安装、配置与优化一篇介绍nginx和php-fmp配置，安装和使用的博文，文章将为何将nginx叫做反向代理服务器讲明白了，也能从中看出为什么ngnix会apache性能更加...一篇介绍nginx和php-fmp配置，安装和使用的博...
Where is the itoa function in Linux?
...ld know this if you turned on compiler warnings :)
– cat
Sep 22 '16 at 17:25
3
@cat But there are...
Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...ch, the IEnumerable<T>.GetEnumerator() method will return a heap-allocated object, rendering the optimization impossible.
– supercat
May 10 '12 at 15:58
...