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Is there a use-case for singletons with database access in PHP?
...all one needs to maintain multiple database connections, multiple database selections, multiple database queries, multiple result sets in a given singleton is just keeping them in variables/arrays in the singleton as long as they are needed. This can be as simple as keeping them in arrays, though yo...
How do I configure emacs for editing HTML files that contain Javascript?
...n but a quick fix if you really need to have javascript in your html is to select the region containing javascript and use the command narrow-to-region(C-x n n) and then switch to your preferred javascript mode. The command widen brings you back, (C-x n w).
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Add missing dates to pandas dataframe
... fill data for missing labels, (including by forward/backward filling) (4) select rows by label!
– unutbu
Oct 11 '13 at 18:36
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Pass An Instantiated System.Type as a Type Parameter for a Generic Class
...amic is still rooted to a strongly typed language the run time binder will select the appropriate Markdown method. If there is no exact type matches, it will look for an object parameter method and if neither match a runtime binder exception will be raised alerting that no method matches.
The obvio...
How to run only one task in ansible playbook?
...
Yes, there is. To be specific, one way to selectively run plays now is by "tagging" the plays. There may be OTHER ways to limit the plays also; I am still learning...
– Scott Prive
May 2 '19 at 1:55
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image processing to improve tesseract OCR accuracy
..." filter really made my day. Another step that helped me: using the "fuzzy selection" tool select the background then press Del for wightening it out
– Davide
Apr 13 '15 at 10:30
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Best way to store time (hh:mm) in a database
...t a glance and performing calculations on them are straightforward.
E.g.
SELECT DATEDIFF(MINUTE, event_start, event_end)
ISO8601 date standard
If using SQLite then you don't have this, so instead use a Text field and store it in ISO8601 format eg.
"2013-01-27T12:30:00+0000"
Notes:
This use...
Verify if a point is Land or Water in Google Maps
...ue&with_field_names=true
You have to register and supply your key and selected layer number. You can search all their repository of available layers. Most of the layers are only regional, but you can find global also, like the World Coastline:
When you select a layer, you click on the "Service...
What is this 'Lambda' everyone keeps speaking of?
... without bloating your code unnecessarily. For example, in Ruby:
(1..100).select {|num| num % 2 == 0}
This will create an array containing the even numbers between 1 and 100. We don't have to write out an explicit loop — the select method takes a function that it uses to test the values, so all...
How to get the part of a file after the first line that matches a regular expression?
...it, -e indicated a script to sed, /TERMINATE/,$ is an address (line) range selection meaning the first line matching the TERMINATE regular expression (like grep) to the end of the file ($), and p is the print command which prints the current line.
This will print from the line that follows the line...