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How to “EXPIRE” the “HSET” child key in redis?
... this is why redis is such an awesome piece of software. they know where to keep it simple
– tObi
Jan 4 '19 at 21:25
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How does the SQL injection from the “Bobby Tables” XKCD comic work?
...call it Derper) are concatenated with the rest of the query, the result is now actually two queries separated by the statement terminator (semicolon). The second query has been injected into the first. When the code executes this query against the database, it will look like this
INSERT INTO Stud...
Rails DB Migration - How To Drop a Table?
I added a table that I thought I was going to need, but now no longer plan on using it. How should I remove that table?
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How to download source in ZIP format from GitHub?
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not without using the Github API as far as I know.
– Christoph
Feb 11 '13 at 15:25
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What are dictionary view objects?
...eritems() returns an iterator over the dictionary’s (key, value) pairs.
Now take the following example to see the difference between an interator of dict and a view of dict
>>> d = {"x":5, "y":3}
>>> iter = d.iteritems()
>>> del d["x"]
>>> for i in iter: print...
Returning a C string from a function
...ing like "my string" actually uses 9+1 (=10!) bytes. This is important to know when you finally get around to allocating strings dynamically.
So, without this 'terminating zero', you don't have a string. You have an array of characters (also called a buffer) hanging around in memory.
Longevity of ...
SSH to Vagrant box in Windows?
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And then do that for every VM in Vagrant. You know, Vagrant works with multiple VM's. So, just use the proper solution, not workaround: there is my answer below. Small patch in Vagrant.
– Michael Field
Dec 4 '12 at 18:07
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How to implement an abstract class in ruby?
I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like...
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PHP Warning: POST Content-Length of 8978294 bytes exceeds the limit of 8388608 bytes in Unknown on l
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Nowadays the filename would most definitely be .user.ini
– yunzen
Nov 13 '18 at 10:52
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Should I use px or rem value units in my CSS? [closed]
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TL;DR: use px.
The Facts
First, it's extremely important to know that per spec, the CSS px unit does not equal one physical display pixel. This has always been true – even in the 1996 CSS 1 spec.
CSS defines the reference pixel, which measures the size of a pixel on a 96 dpi displa...