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Empty arrays seem to equal true and false at the same time
...
You're testing different things here.
if (arr) called on object (Array is instance of Object in JS) will check if the object is present, and returns true/false.
When you call if (arr == false) you compare values of this object and the primitive false value. Internally, a...
How to replace a character by a newline in Vim
...s a newline (more precisely, it’s treated as the input CR). Here’s a small, non-interactive example to illustrate this, using the Vim command line feature (in other words, you can copy and paste the following into a terminal to run it). xxd shows a hexdump of the resulting file.
echo bar > te...
How to change the pop-up position of the jQuery DatePicker control
...e bottom of the page and the DatePicker shifts up to account for it and totally covers the text box. If the user wants to type the date instead of pick it, they can't. I'd rather have it appear just after the text box so it doesn't matter how it adjusts vertically.
...
Execute PowerShell Script from C# with Commandline Arguments
...andParameter("key","value");
myCommand.Parameters.Add(testParam);
and finally
pipeline.Commands.Add(myCommand);
Here is the complete, edited code:
RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfigu...
Remove specific commit
...hanged line 2"
1 files changed, 1 insertions(+), 1 deletions(-)
Then it all works as expected.
The second answer was very interesting. There is a feature which has not yet been officially released (though it is available in Git v1.7.2-rc2) called Revert Strategy. You can invoke git like this:
...
Permission denied on accessing host directory in Docker
.../db:/var/db:z rhel7 /bin/sh
Will automatically do the chcon -Rt svirt_sandbox_file_t /var/db
described in the man page.
Even better, you can use Z.
docker run -v /var/db:/var/db:Z rhel7 /bin/sh
This will label the content inside the container with the exact MCS
label that the c...
What actually causes a Stack Overflow error? [duplicate]
...ve programs, when there is a risk of writing into memory that had not been allocated for the buffer, and thus to corrupt some other memory locations. It's not the case at all.
JVM has a given memory allocated for each stack of each thread, and if an attempt to call a method happens to fill this mem...
What is a semaphore?
...s bouncers at a nightclub. There are a dedicated number of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might enter.
It's simply a way to limit the number of consumers for a specific resource. For exampl...
How to fix Git error: object file is empty?
... the .git directory and run find . -type f -empty -delete -print to remove all empty files. Eventually git started telling me it was actually doing something with the object directories:
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git fsck --full
Checking object directories: 100% (256/256)...
Timing a command's execution in PowerShell
...turn the average, minimum and maximum time taken. You can add -Silent to swallow STDOUT.
– joshuapoehls
Mar 26 '12 at 18:11
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