大约有 42,000 项符合查询结果（耗时：0.0514秒） [XML]
How to kill zombie process
...nate the zombie. (After the parent dies, the zombie will be inherited by pid 1, which will wait on it and clear its entry in the process table.) If your daemon is spawning children that become zombies, you have a bug. Your daemon should notice when its children die and wait on them to determine t...
How to focus on a form input text field on page load using jQuery?
...nother index:
$('input[@type="text"]')[0].focus();
Or, you can use the ID:
$("#someTextBox").focus();
share
|
improve this answer
|
follow
|
...
Count immediate child div elements using jQuery
...
$("#foo > div").length
Direct children of the element with the id 'foo' which are divs. Then retrieving the size of the wrapped set produced.
share
|
improve this answer
|
...
Convert SVG image to PNG with PHP
...
That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_co...
How do you truncate all tables in a database using TSQL?
...ore on disabling constraints and triggers here
if some of the tables have identity columns we may want to reseed them
EXEC sp_MSForEachTable "DBCC CHECKIDENT ( '?', RESEED, 0)"
Note that the behaviour of RESEED differs between brand new table, and one which had had some data inserted previously ...
How exactly to use Notification.Builder
... so we can use this to support API level v4 and up:
http://developer.android.com/reference/android/support/v4/app/NotificationCompat.Builder.html
share
|
improve this answer
|
...
When to use symbols instead of strings in Ruby?
...;DR
A simple rule of thumb is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks.
Full answer
The only reason not to use them for identifiers that are generated dynamically is because of memory ...
How do I pass multiple attributes into an Angular.js attribute directive?
... scope.callback(); // calls exampleCallback()
}
};
});
fiddle
If the value of attribute example-number will be hard-coded, I suggest using $eval once, and storing the value. Variable num will have the correct type (a number).
...
PHP - Modify current object in foreach loop
... $questions[$key]['answers'] = $answers_model->get_answers_by_question_id($question['question_id']);
}
This way you save the key, so you can update it again in the main $questions variable
or
foreach($questions as &$question){
Adding the & will keep the $questions updated. But I wo...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...ced the fact that the method addPreferencesFromResource(int preferencesResId) is marked deprecated in Android's documentation ( Reference Entry ).
...