大约有 25,300 项符合查询结果（耗时：0.0436秒） [XML]
How do I make a dotted/dashed line in Android?
...
|
show 7 more comments
211
...
MISCONF Redis is configured to save RDB snapshots
...
In case you encounter the error and some important data cannot be discarded on the running redis instance (problems with permissions for the rdb file or its directory incorrectly, or running out of disk space), you can always redirect the rdb file to be written s...
What are some good Python ORM solutions? [closed]
...r) that talks to a Python web service on the back-end. So, I really need something fast and lightweight on the back-end that I can implement using Python that then speaks to the PostgreSQL DB via an ORM (JSON to the browser).
...
How do I syntax check a Bash script without running it?
...
bash -n scriptname
Perhaps an obvious caveat: this validates syntax but won't check if your bash script tries to execute a command that isn't in your path, like ech hello instead of echo hello.
...
How to print register values in GDB?
...
Same problem: %eax is in the code, yet print $eax shows void.
– Ruslan Yushchenko
Oct 8 '12 at 16:42
5
...
Callback after all asynchronous forEach callbacks are completed
...that gets updated in the callback. Depending on the value of the index parameter does not provide the same guarantee, because the order of return of the asynchronous operations is not guaranteed.
Using ES6 Promises
(a promise library can be used for older browsers):
Process all requests guarante...
Laravel Migration Change to Make a Column Nullable
...l 5 now supports changing a column; here's an example from the offical documentation:
Schema::table('users', function($table)
{
$table->string('name', 50)->nullable()->change();
});
Source: http://laravel.com/docs/5.0/schema#changing-columns
Laravel 4 does not support modifying colu...
check if jquery has been loaded, then load it if false
...
Maybe something like this:
<script>
if(!window.jQuery)
{
var script = document.createElement('script');
script.type = "text/javascript";
script.src = "path/to/jQuery";
document.getElementsByTagName('head')[0].appen...
Why is “import *” bad?
It is recommended to not to use import * in Python.
12 Answers
12
...
How to add a button to a PreferenceScreen?
I'm quite new to Android Development and just came across Preferences.
I found PreferenceScreen and wanted to create a login functionality with it. The only problem I have is that I don't know how I could add a "Login" button to the PreferenceScreen .
...