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The performance impact of using instanceof in Java
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Modern JVM/JIT compilers have removed the performance hit of most of the traditionally "slow" operations, including instanceof, exception handling, reflection, etc.
As Donald Knuth wrote, "We should forget about small efficiencies, say a...
renamed heroku app from website, now it's not found
After renaming my heroku app from the heroku website, whenever I cd to its directory in a terminal and run any heroku command, I get App not found . Does anybody know of a way to remedy this?
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How do I compile C++ with Clang?
... by using apt-get in Ubuntu, and I can successfully compile C files using it. However, I have no idea how to compile C++ through it. What do I need to do to compile C++?
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Literal suffix for byte in .NET?
...hort way like floats or doubles? I mean like 5f and 5d . Sure I could write byte x = 5 , but that's a bit inconsequential if you use var for local variables.
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Get names of all keys in the collection
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You could do this with MapReduce:
mr = db.runCommand({
"mapreduce" : "my_collection",
"map" : function() {
for (var key in this) { emit(key, null); }
},
"reduce" : function(key, stuff) { return null; },
"out": "my_collection" + ...
Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
When I compile C/C++ program with popen in php ... I got this error:
9 Answers
9
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Remove HTML Tags in Javascript with Regex
...out of a string in Javascript.
Heres what I have... I can't figure out why its not working....any know what I am doing wrong?
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Remove empty strings from a list of strings
...(bool, str_list)
str_list = filter(len, str_list)
str_list = filter(lambda item: item, str_list)
Python 3 returns an iterator from filter, so should be wrapped in a call to list()
str_list = list(filter(None, str_list))
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Get itunes link for app before submitting
I read in another post that you can submit the app without the binary but I based on what I have seen this is no longer possible. It seems you cannot submit without the binary and the binary is submitted through the application loader. Is there any other known way to get the itunes/app store link to...
method of iterating over sqlalchemy model's defined columns?
I've been trying to figure out how to iterate over the list of columns defined in a SQLAlchemy model. I want it for writing some serialization and copy methods to a couple of models. I can't just iterate over the obj.__dict__ since it contains a lot of SA specific items.
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