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What does 'foo' really mean?
...iables. Python programmers supposedly use spam, eggs, ham, instead of foo, etc.
There are good uses of foo in SA.
I have also seen foo used when the programmer can't think of a meaningful name (as a substitute for tmp, say), but I consider that to be a misuse of foo.
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Unresolved external symbol in object files
...an try to figure out what class of your library that have getName, getType etc ... and put that in the header file or using #include.
Also if these happen to be from an external library, make sure you reference to them on your project file. For example, if this class belongs to an abc.lib then in ...
What is the purpose of the single underscore “_” variable in Python?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Difference between single and double square brackets in Bash
...exicographically
using the current locale. The test command uses ASCII
ordering.
(The test command is identical to [ ] )
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Why is Python running my module when I import it, and how do I stop it?
...s only the case for variables and arrays of variable, and not for methods, etc.
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What is SQL injection? [duplicate]
...t data is valid.
Do a code review to check for the possibility of second-order
attacks.
Use parameterised queries.
Use stored procedures.
Re-validate data in stored procedures.
Ensure that error messages give nothing away about the internal
architecture
How do I insert NULL values using PDO?
...nstance
$query = $db->prepare($sql);
//Works with INT, FLOAT, ETC.
$query->bindValue(':productId', !empty($productId) ? $productId : NULL, PDO::PARAM_INT);
//Works with strings.
$query->bindValue(':productName',!empty($productName) ? $productName : NULL, PDO::PA...
What does the NS prefix mean?
...oprietary term
for the OpenStep framework, NeXTSTEP): NSString, NSArray, etc.
Foundation Kit, or more commonly simply Foundation, first appeared in
OpenStep. On Mac OS X, it is based on Core Foundation. Foundation is a
generic object-oriented library providing string and value
manipulat...
How can I get the current user's username in Bash?
... variable is set correctly only after reading profile files (for example, /etc/profile)
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css overflow - only 1 line of text
... inline-block level elements, because the element needs to have a width in order to be overflow-ed. The overflow happens in the direction as determined by the direction property or related attributes.
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