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How to establish a connection pool in JDBC?
..." ); //loads the jdbc driver
cpds.setJdbcUrl( "jdbc:postgresql://localhost/testdb" );
cpds.setUser("swaldman");
cpds.setPassword("test-password");
// the settings below are optional -- c3p0 can work with defaults
cpds.setMinPoolSize(5);
cpds.setAcquireIncrement(5);
cpds.setMaxPoolSize(20);
// The ...
Shell - Write variable contents to a file
...me
if [ -f "$destdir" ]
then
echo "$var" > "$destdir"
fi
The if tests that $destdir represents a file.
The > appends the text after truncating the file. If you only want to append the text in $var to the file existing contents, then use >> instead:
echo "$var" >> "$destdi...
node.js shell command execution
...hmod
cp
dirs
echo
exec
exit
find
grep
ln
ls
mkdir
mv
popd
pushd
pwd
rm
sed
test
which
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How do I move to end of line in Vim?
... use vim in standard terminal. Hope it will help someone.
For macOS users (tested on macbook pro 2018):
fn + ← - move to beginning line
fn + → - move to end line
fn + ↑ - move page up
fn + ↓ - move page down
fn + g - move the cursor to the beginning of the d...
Reusable library to get human readable version of file size?
...this "too small a task" were captured and encapsulated into a library with tests.
– fess .
Feb 27 '16 at 22:03
6
...
JavaScript file upload size validation
... browsers, the File API. It can be used for this purpose, and it's easy to test whether it's supported and fall back (if necessary) to another mechanism if it isn't.
Here's a complete example:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-type" content="text/html;cha...
How to remove application from app listings on Android Developer Console
...production mode but now i unpublished it and i want to publish it in alpha testers. when i tried this then production apk is publishing but not alpha, so how can i publish only alpha test release mode after publishing production apk?Is there any way to hide production apk and to publish alpha tester...
appending array to FormData and send via AJAX
...t in arr[] , why isn't arr[] redefined? arr[] is also a string . And while testing both neither arr nor arr[] was redefined in my case. I got multiple array in FormData with same key but different value. So i got arr with value 1 and another arr with value 2.
– Totoro
...
zsh compinit: insecure directories
...it will ask if the completion system should really be used. To avoid these tests and make all files found be used without asking, use the option -u, and to make compinit silently ignore all insecure files and directories use the option -i. This security check is skipped entirely when the -C option i...
'innerText' works in IE, but not in Firefox
... answer Firefox does not support the innerText property. So you can simply test whether the user agent supports this property and proceed accordingly as below:
function changeText(elem, changeVal) {
if (typeof elem.textContent !== "undefined") {
elem.textContent = changeVal;
} else ...