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CORS - What is the motivation behind introducing preflight requests?
... CORS' use of preflight requests is definitely for security reasons. It's more than just a sanity check to prevent a relatively harmless error scenario. If the user agent blindly sent the request to the server, falsely assuming the server implemented CORS, it would most likely be accepting cross s...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
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If a DOM Element is removed, are its listeners also removed from memory?
... hold of references to the elements they were attached to.
If you want a more in-depth explanation of the causes, patterns and solutions used to fix legacy IE version memory leaks, I fully recommend you read this MSDN article on Understanding and Solving Internet Explorer Leak Patterns.
A few mor...
Rename all files in directory from $filename_h to $filename_half?
... ${string/substring/substitution} – "substitute first occurrence". For more info check this cheat sheet (section "strings"): bruxy.regnet.cz/linux/bash_cheatsheet/bash_cheatsheet.pdf
– WindRider
Apr 25 '14 at 9:08
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How to get the next auto-increment id in mysql
...d to retrieve the data from information_schema.tables, this solution do no more work for mysql 8.
– Bruno
Feb 6 '19 at 16:39
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Reading a huge .csv file
... return
I also simplified your filter test; the logic is the same but more concise.
Because you are only matching a single sequence of rows matching the criterion, you could also use:
import csv
from itertools import dropwhile, takewhile
def getstuff(filename, criterion):
with open(filen...
how to detect search engine bots with php?
... Erm, strpos returns FALSE on failure, too. It's faster and more efficient, though (no preprocessing, and no O(m) storage).
– Damon
Apr 14 '14 at 10:19
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Why does volatile exist?
... volatile. That's what the compiler does when optimizing code. If there is more information, namely, that said data is in fact volatile, it's the responsibility to the programmer to provide that information. What you're claiming to by a buggy compiler is really just bad programming.
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What is the difference between JavaScript and ECMAScript?
...ittle and basically points you to Wikipedia. The answer by Yang Li is much more detailed and useful. Also, whether one is the language/standard and other the dialect, or implementation etc is open to opinion, and not fact, from what I understand. Whereas this answer makes it appear that it is fact. ...
Plotting two variables as lines using ggplot2 on the same graph
...olour='var_names' as specified by hadley works fine. but @DaveX - would be more specific if one wants to choose specific colors rather than automatically selected colours by the function.
– I_m_LeMarque
Apr 5 '19 at 9:42
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