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html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
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As mentioned in other answers, you'll always get the QuotaExceededError in Safari Private Browser Mode on both iOS and OS X when localStorage.setItem (or sessionStorage.setItem) is called.
One solution is to do a try/catch or Modern...
Favourite performance tuning tricks [closed]
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Here is the handy-dandy list of things I always give to someone asking me about optimisation.
We mainly use Sybase, but most of the advice will apply across the board.
SQL Server, for example, comes with a host of performance monitoring / tuning bits, but if you don't have anything...
A std::map that keep track of the order of insertion?
... I ended up writing a container which integrated map and list into one: codereview.stackexchange.com/questions/233177/… No duplication
– Oliver Schönrock
Dec 17 '19 at 22:54
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How to count occurrences of a column value efficiently in SQL?
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Here's another solution. this one uses very simple syntax. The first example of the accepted solution did not work on older versions of Microsoft SQL (i.e 2000)
SELECT age, count(*)
FROM Students
GROUP by age
ORDER BY age
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How do I move an existing Git submodule within a Git repository?
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Note: As mentioned in the comments this answer refers to the steps needed with older versions of git. Git now has native support for moving submodules:
Since git 1.8.5, git mv old/submod new/submod works as expected and does all the p...
What is the difference between gmake and make?
...commercial unixes.
The language accepted by GNU make is a superset of the one supported by the traditional make utility.
By using 'gmake' specifically you can use GNU make extensions without worrying about them being misinterpreted by some other make implementation.
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When does static class initialization happen?
...s static initialization normally happens immediately before the first time one of the following events occur:
an instance of the class is created,
a static method of the class is invoked,
a static field of the class is assigned,
a non-constant static field is used, or
for a top-level class, an as...
Using Vim's persistent undo?
One of the new features in Vim 7.3 is 'persistent undo', which allows for the undotree to be saved to a file when exiting a buffer.
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Remove unwanted parts from strings in a column
... 30
5 13:00 110
With extract, it is necessary to specify at least one capture group. expand=False will return a Series with the captured items from the first capture group.
.str.split and .str.get
Splitting works assuming all your strings follow this consistent structure.
# df['result'...
Why do we need to install gulp globally and locally?
...lp say that I need to install gulp first globally (with -g flag) and then one more time locally. Why do I need this?
7 Ans...