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jQuery: count number of rows in a table
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Use a selector that will select all the rows and take the length.
var rowCount = $('#myTable tr').length;
Note: this approach also counts all trs of every nested table!
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
... be in the global scope in a.php doesn't necessarily mean they are, it actually depends on which context that code is included/executed in.
What about functions inside functions and classes?
Every new function declaration introduces a new scope, it's that simple.
(anonymous) functions inside func...
How to debug a bash script? [closed]
...ug a bash script? E.g something that prints a sort of execution log like "calling line 1", "calling line 2" etc.
12 Answers...
String literals: Where do they go?
I am interested in where string literals get allocated/stored.
8 Answers
8
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Visual C++: How to disable specific linker warnings?
... /wd4099 will not work), but what you can do instead is patch link.exe (usually C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\link.exe) to remove it from said list . Sounds like a jackhammer, i know. It works though.
For instance, if you want to remove the warning for 4099, open link.e...
Is it better practice to use String.format over string Concatenation in Java?
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They are all bad practice. Use StringBuilder.
– Amir Raminfar
Aug 11 '11 at 16:37
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TDD vs. Unit testing [closed]
...n. Even Unit tests written after the code are better than no Unit Tests at all!
Once they're proficient at Unit Testing (and everything that comes with it), then you can work on getting them to create the tests first...and code second.
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Python time measure function
...e__, (time2-time1)*1000.0))
return ret
return wrap
Note I'm calling f.func_name to get the function name as a string(in Python 2), or f.__name__ in Python 3.
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Extract a regular expression match
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Use the new stringr package which wraps all the existing regular expression operates in a consistent syntax and adds a few that are missing:
library(stringr)
str_locate("aaa12xxx", "[0-9]+")
# start end
# [1,] 4 5
str_extract("aaa12xxx", "[0-9]+")
# [1]...
Difference between Covariance & Contra-variance
...ng function that associates one member of a set with another. More specifically, a mapping can be covariant or contravariant with respect to a relation on that set.
Consider the following two subsets of the set of all C# types. First:
{ Animal,
Tiger,
Fruit,
Banana }.
And second, this c...