大约有 44,000 项符合查询结果（耗时：0.0709秒） [XML]
How to make connection to Postgres via Node.js
... find myself trying to create a postgres database, so I installed postgres and started a server with initdb /usr/local/pgsql/data , then I started that instance with postgres -D /usr/local/pgsql/data now how can I interact with this through node? For example, what would the connectionstring be,...
Best practices to handle routes for STI subclasses in rails
My Rails views and controllers are littered with redirect_to , link_to , and form_for method calls. Sometimes link_to and redirect_to are explicit in the paths they're linking (e.g. link_to 'New Person', new_person_path ), but many times the paths are implicit (e.g. link_to 'Show', person ...
Sorting multiple keys with Unix sort
...s that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
...
The import android.support cannot be resolved
...g to run the code provided HERE
I downloaded the code from their Github and imported into Android SDK, but it shows error at the lines
...
How to install APK from PC?
I want to install an APK from PC to Android device. And because of user's Android and generally technical skills, I need to do it as automatically (silently) as possible. So how do I send an APK from PC to Android and start install there?
...
Why can a function modify some arguments as perceived by the caller, but not others?
I'm trying to understand Python's approach to variable scope. In this example, why is f() able to alter the value of x , as perceived within main() , but not the value of n ?
...
Are delphi variables initialized with a value by default?
I'm new to Delphi, and I've been running some tests to see what object variables and stack variables are initialized to by default:
...
How to check if an activity is the last one in the activity stack for an application?
... (I would prefer second one).
There's possibility to check current tasks and their stack using ActivityManager.
So, to determine if an activity is the last one:
request android.permission.GET_TASKS permissions in the manifest.
Use the following code:
ActivityManager mngr = (ActivityManager) ge...
jQuery 'input' event
...ecause keyup will fire even if the key does nothing (for example: pressing and then releasing the Control key will trigger a keyup event).
A good way to think about it is like this: it's an event that triggers whenever the input changes. This includes -- but is not limited to -- pressing keys which...
Populating a database in a Laravel migration file
I'm just learning Laravel, and have a working migration file creating a users table. I am trying to populate a user record as part of the migration:
...