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In Javascript, how to conditionally add a member to an object?
..., I cannot think of anything more idiomatic than your first code snippet.
If, however, using the jQuery library is not out of the question, then $.extend() should meet your requirements because, as the documentation says:
Undefined properties are not copied.
Therefore, you can write:
var a =...
How do I get java logging output to appear on a single line?
...tS you can write %1$tF %1$tT . Makes it a little bit shorter. I don't know if it's even faster.
– Bruno Eberhard
Dec 28 '14 at 8:47
...
Why use try {} finally {} with an empty try block?
...borted”. So in order to
guarantee that your processing
finishes even if your thread is
aborted in the middle by someone
calling Abort on your thread, you can
place all your code in the finally
block (the alternative is to write
code in the “catch” block to determine
where you w...
How to round up the result of integer division?
...fter trying several much more complex approaches.
– Mifo
Jul 29 '17 at 23:41
1
For languages with...
“Treat all warnings as errors except…” in Visual Studio
...ct the "Treat warnings as errors" option to prevent my code from compiling if there are any warnings. Our team uses this option, but there are two warnings we would like to keep as warnings.
...
How to combine multiple conditions to subset a data-frame using “OR”?
I have a data.frame in R. I want to try two different conditions on two different columns, but I want these conditions to be inclusive. Therefore, I would like to use "OR" to combine the conditions. I have used the following syntax before with lot of success when I wanted to use the "AND" conditio...
Removing index column in pandas when reading a csv
...column(s), it is not a column, which is why del df['index'] did not work.
If you want to replace the index with simple sequential numbers, use df.reset_index().
To get a sense for why the index is there and how it is used, see e.g. 10 minutes to Pandas.
...
Difference between HashMap, LinkedHashMap and TreeMap
What is the difference between HashMap , LinkedHashMap and TreeMap in Java?
I don't see any difference in the output as all the three has keySet and values . What are Hashtable s?
...
Never seen before C++ for loop
...way, Thomas may have been confused by the use of the comma too, it's very different than the semi-colon, it lets you do multiple things in one section of the for loop (in this case, it initialized two variables). Last time I checked these unusual constructs weren't considered the most readable solu...
Find files and tar them (with spaces)
... problem here. I'm working on a simple back up code. It works fine except if the files have spaces in them. This is how I'm finding files and adding them to a tar archive:
...