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Are there any disadvantages to always using nvarchar(MAX)?
...disadvantages to making all character fields nvarchar(MAX) rather than specifying a length explicitly, e.g. nvarchar(255)? (Apart from the obvious one that you aren't able to limit the field length at the database level)
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How to crop an image in OpenCV using Python
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Alternatively, if you have defined a crop margin, you can do crop_img = img[margin:-margin, margin:-margin]
– Rufus
Aug 28 '18 at 2:35
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How to use the TextWatcher class in Android?
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Actually if this is the requirement then better not to use the text watcher.it's going to infinite loop
– Dinesh Prajapati
Dec 17 '11 at 9:50
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Detecting request type in PHP (GET, POST, PUT or DELETE)
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By using
$_SERVER['REQUEST_METHOD']
Example
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
// The request is using the POST method
}
For more details please see the documentation for the $_SERVER variable.
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Remote origin already exists on 'git push' to a new repository
...git remote rm origin
Again "origin" is the name of the remote repository if you want to
remove the "upstream" remote:
git remote rm upstream
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jQuery SVG, why can't I addClass?
...ery (less than 3) can't add a class to an SVG.
.attr() works with SVG, so if you want to depend on jQuery:
// Instead of .addClass("newclass")
$("#item").attr("class", "oldclass newclass");
// Instead of .removeClass("newclass")
$("#item").attr("class", "oldclass");
And if you don't want to depe...
Shell equality operators (=, ==, -eq)
Can someone please explain the difference between = , == and -eq in shell scripting?
4 Answers
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Use “ENTER” key on softkeyboard instead of clicking button
... public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_DOWN)
{
switch (keyCode)
{
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_ENTER:
addCourse...
How do I enable/disable log levels in Android?
...LOGLEVEL > 1;
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public static boolean VERBOSE = LOGLEVEL > 4;
if (VERBOSE) Log.v(TAG, "Message here"); // Won't be shown
if (WARN) Log.w(TAG, "WARNING HERE"); // Still goes through
Later, you can just change the LOGLEVEL for all debug output level.
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Is duplicated code more tolerable in unit tests?
...eems there is a trade-off between tests' readability and maintainability. If I leave duplicated code in unit tests, they're more readable, but then if I change the SUT , I'll have to track down and change each copy of the duplicated code.
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