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Why is require_once so bad to use?
...call means checking that log. So there's definitely some extra work being done there but enough to detriment the speed of the whole app?
... I really doubt it... Not unless you're on really old hardware or doing it a lot.
If you are doing thousands of *_once, you could do the work yourself in a l...
Can iterators be reset in Python?
...
I see many answers suggesting itertools.tee, but that's ignoring one crucial warning in the docs for it:
This itertool may require significant
auxiliary storage (depending on how
much temporary data needs to be
stored). In general, if one iterator
uses most or all of the data b...
How to cat a file containing code?
...d to expand some, but not all, values, you need to individually escape the ones you want to prevent.
cat <<EOF >>brightup.sh
#!/bin/sh
# Created on $(date # : <<-- this will be evaluated before cat;)
echo "\$HOME will not be evaluated because it is backslash-escaped"
EOF
will pr...
What is the rationale for fread/fwrite taking size and count as arguments?
...m) and fread(buf, 1, 1000, stream) is, that in the first case you get only one chunk of 1000 bytes or nuthin, if the file is smaller and in the second case you get everything in the file less than and up to 1000 bytes.
share...
biggest integer that can be stored in a double
...be stored, with 52 bits explicitly stored in the mantissa, and then the exponent in effect giving you another one.
253 obviously can be stored, since it's a small power of 2.
Or another way of looking at it: once the bias has been taken off the exponent, and ignoring the sign bit as irrelevant to...
What are -moz- and -webkit-? [duplicate]
... used to learn CSS, I have never seen anything like these lines. Could someone please explain these lines to me or give me a source where I could learn to implement lines like these?
...
When to Redis? When to MongoDB? [closed]
... MongoDB doesn't enforce a schema, but I'd like to see a case where someone uses it without a schema...it's all how you define the word schema
– Robbie Guilfoyle
Oct 15 '14 at 19:14
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Merge (with squash) all changes from another branch as a single commit
In Git, is there a way to merge all changes from one branch into another, but squash to a single commit at the same time?
...
Centering a div block without the width
...e is that you contain the content you want to center in two divs, an outer one and an inner one. You float both divs so that their widths automatically shrink to fit your content. Next, you relatively position the outer div with it's right edge in the center of the container. Lastly, you relative...
Export a stash to another computer
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After reading this answer one thing I was wondering was how to select a particular stash from all my stashes. The answer to that is here: stackoverflow.com/a/1910142/1148702 . In this case I ended up doing: git stash show "stash@{0}" -p > patch ins...