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How do I write a correct micro-benchmark in Java?
... iterations.)
Rule 2: Always run with -XX:+PrintCompilation, -verbose:gc, etc., so you can verify that the compiler and other parts of the JVM are not doing unexpected work during your timing phase.
Rule 2.1: Print messages at the beginning and end of timing and warmup phases, so you can verify th...
How is null + true a string?
... | same with System.Single, System.Double, System.Decimal, System.TimeSpan etc
var b = (null + new Object()); // String | same with any ref type
Crazy?? No, there must be a reason behind it.
Someone call Eric Lippert...
s...
Node.js check if path is file or directory
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Objects returned from fs.stat() and fs.lstat() are of this type.
stats.isFile()
stats.isDirectory()
stats.isBlockDevice()
stats.isCharacterDevice()
stats.isSymbolicLink() (only valid with fs.lstat())
stats.isFIFO()
stats.isSocket()
NOTE:
The above solution will throw an Error if; for ex, the fil...
How to write logs in text file when using java.util.logging.Logger
...ve a situation in which I want to write all logs created by me into a text file.
10 Answers
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psql - save results of command to a file
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From psql's help (\?):
\o [FILE] send all query results to file or |pipe
The sequence of commands will look like this:
[wist@scifres ~]$ psql db
Welcome to psql 8.3.6, the PostgreSQL interactive terminal
db=>\o out.txt
db=>\dt
db=>\q
...
Unlink of file Failed. Should I try again?
Something wrong is going on with one of the files in my local git repository. When I'm trying to change the branch it says:
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SVN how to resolve new tree conflicts when file is added on two branches
When merging a couple of branches (using SVN 1.6.1) where a file has been added on both branches (and then worked on in those separate branches) I'm getting one of the new tree conflicts:
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Why do we need the “finally” clause in Python?
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You can use finally to make sure files or resources are closed or released regardless of whether an exception occurs, even if you don't catch the exception. (Or if you don't catch that specific exception.)
myfile = open("test.txt", "w")
try:
myfile.wri...
Application not picking up .css file (flask/python)
...ng a template, that I am attempting to style with an external style sheet. File structure is as follows.
10 Answers
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Directory does not exist. Parameter name: directoryVirtualPath
...roblem and found out that I had some bundles that pointed to non-exisiting files using {version} and * wildcards such as
bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
"~/Scripts/jquery-{version}.js"));
I removed all of those and the error went away.
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