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Two single-column indexes vs one two-column index in MySQL?
... queries using either or both of the columns fast, but of course uses also more disk space.
When choosing the indexes, you also need to consider the effect on inserting, deleting and updating. More indexes = slower updates.
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JS Client-Side Exif Orientation: Rotate and Mirror JPEG Images
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Reset select2 value and show placeholder
... As of v4.0.3, it doesn't seem like .select2("val", "") works anymore.
– adamj
Aug 6 '16 at 13:45
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check if directory exists and delete in one command unix
...produce similar results but actually doing a test before the command makes more sense.
– Ankur Chauhan
Jan 28 '13 at 5:04
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difference between foldLeft and reduceLeft in Scala
...used foldLeft instead of foldRight.
Watch One Fold to rule them all for a more in depth explanation.
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How to get a random number in Ruby
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593
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Best way to add “current” class to nav in Rails 3
...ontroller / actions but in the same menu item, right? Have you encountered more advantages~?
– PeterWong
Sep 15 '10 at 2:39
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Will console.log reduce JavaScript execution performance?
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Creating a temporary directory in Windows?
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Get IP address of visitors using Flask for Python
...ef get_my_ip():
return jsonify({'ip': request.remote_addr}), 200
For more information see the Werkzeug documentation.
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