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Can a local variable's memory be accessed outside its scope?
...s think about the stack. In many operating systems you get one stack per thread and the stack is allocated to be a certain fixed size. When you call a method, stuff is pushed onto the stack. If you then pass a pointer to the stack back out of your method, as the original poster does here, that's jus...
Define global variable in a JavaScript function
...). As I mentioned, they end up being properties of window, and window is already plenty crowded enough what with all elements with an id (and many with just a name) being dumped in it (and regardless that upcoming specification, IE dumps just about anything with a name on there).
Instead, wrap your...
How to get key names from JSON using jq
...;(jq -r 'keys[]' ms.json)
On older BASH you can do:
arr=()
while IFS='' read -r line; do
arr+=("$line")
done < <(jq 'keys[]' ms.json)
Then print it:
printf "%s\n" ${arr[@]}
"Archiver-Version"
"Build-Id"
"Build-Jdk"
"Build-Number"
"Build-Tag"
"Built-By"
"Created-By"
"Implementation-Ti...
Visual Studio 2013 doesn't discover unit tests
...our solution is in a protected drive that you need administrator access to read/write, sometimes only a portion of the tests come up. Definitely run VS as administrator in that case.
If your solution is 64 bit, make sure that Test > Test Settings > Default Processor Architecture is set to x64....
Hibernate - Batch update returned unexpected row count from update: 0 actual row count: 0 expected:
...to solve the issue? If I get a record, and then delete it; but if system already deletes it before I delete, another, my application will throw the exception.
– Stony
Jul 1 '14 at 6:38
...
mysql_config not found when installing mysqldb python interface
...
Reading package lists...Done Building dependency tree Reading state information...Done Note, selecting libmysqlclient15-dev instead of libmysqlclient-dev Some packages could not be installed. This may mean that you hav...
How to replace a string in multiple files in linux command line
...ord/new-word/g' @
Command breakdown
grep -r: --recursive, recursively read all files under each directory.
grep -l: --print-with-matches, prints the name of each file that has a match, instead of printing matching lines.
grep -i: --ignore-case.
xargs: transform the STDIN to arguments, follow...
List goals/targets in GNU make that contain variables in their definition
...
Good news is cmake seems to generates a nice easy to read "help" target.
– Stéphane
Sep 12 '14 at 0:15
...
How to make a valid Windows filename from an arbitrary string?
... any possible performance improvements there. I have kept the original for readability purposes as performance is not my biggest concern. But if anyone is interested, might be worth benchmarking
– chrispepper1989
Mar 24 '15 at 10:53
...
Why is it bad practice to call System.gc()?
...ng this, you shouldn't"
EDIT to address a few concerns from the other thread:
After reading the thread you linked, there's a few more things I'd like to point out.
First, someone suggested that calling gc() may return memory to the system. That's certainly not necessarily true - the Java heap i...