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Debug code-first Entity Framework migration codes
...y, the trick is to grab all the information from an exception, put it in a string and throw a new DbEntityValidationException with the generated string and the original exception.
share
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improve th...
What's better to use in PHP, $array[] = $value or array_push($array, $value)?
...is pretty irrelevant unless you plan on appending hundreds of thousands of strings to your array.
Edit: Ran this code:
$t = microtime(true);
$array = array();
for($i = 0; $i < 10000; $i++) {
$array[] = $i;
}
print microtime(true) - $t;
print '<br>';
$t = microtime(true);
$array = array(...
Can I apply the required attribute to fields in HTML5?
... element in the
select element's list of options (if
any) is the empty string (i.e. present as value=""),
and that
option element's parent node is the
select element (and not an optgroup
element),
then that option is the
select element's placeholder label
option.
...
Most pythonic way to delete a file which may not exist
... os.remove(filename)
If filename is a pathlib.Path object instead of a string, we can call its .unlink() method instead of using os.remove(). In my experience, Path objects are more useful than strings for filesystem manipulation.
Since everything in this answer is exclusive to Python 3, it pr...
What is the correct JSON content type?
...
{
@Override
public void onActionFailed(Form form, int httpStatus, String responseText)
{
MessageBox.alert("Error");
}
@Override
public void onActionComplete(Form form, int httpStatus, String responseText)
{
MessageBox.alert("Success");
}
});
In c...
Change application's starting activity
...roid:name=".put your started activity name here"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</acti...
Using %f with strftime() in Python to get microseconds
...c = repr(now).split('.')[1][:3]
print mlsec
# Get your required timestamp string
timestamp = time.strftime("%Y-%m-%d %H:%M:%S.{} %Z".format(mlsec), struct_now)
print timestamp
For clarification purposes, I also paste my Python 2.7.12 result here:
>>> import time
>>> # get curre...
PHP MySQL Google Chart JSON - Complete Example
...s($r);
}
for($i=0;$i<count($arr1);$i++)
{
$chart_array[$i]=array((string)$arr2[$i],intval($arr1[$i]));
}
echo "<pre>";
$data=json_encode($chart_array);
?>
<html>
<head>
<!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.c...
How to update a menu item shown in the ActionBar?
...xtView) findViewById(R.id.title);
menu.getItem(0).setTitle(
getString(R.string.payFor) + " " + title.getText().toString());
menu.getItem(1).setTitle(getString(R.string.payFor) + "...");
return true;
}
And worked like a charm to me you can find OnPrepareOptionsMenu here
...
Understanding checked vs unchecked exceptions in Java
...ecking is expensive such as number formatting, consider this -
try {
String userAge = (String)request.getParameter("age");
userObject.setAge(Integer.parseInt(strUserAge));
} catch (NumberFormatException npe) {
sendError("Sorry, Age is supposed to be an Integer. Please try again.");
}
...