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What is the proper way to use the node.js postgresql module?
I am writing a node.js app on Heroku and using the pg module . I can't figure out the "right" way to get a client object for each request that I need to query the database.
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What are WSGI and CGI in plain English?
...u saying that there are no other WSGI containers that support running WSGI apps in those modes?
– Ignacio Vazquez-Abrams
Feb 8 '11 at 7:45
3
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How to handle multiple cookies with the same name?
Say for example I had an application sending the following HTTP headers to set to cookie named "a":
6 Answers
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django-debug-toolbar not showing up
...configuration, also see the official install docs here.
EDIT(6/17/2015):
Apparently the syntax for the nuclear option has changed. It's now in its own dictionary:
def show_toolbar(request):
return True
DEBUG_TOOLBAR_CONFIG = {
"SHOW_TOOLBAR_CALLBACK" : show_toolbar,
}
Their tests use th...
How do I request a file but not save it with Wget? [closed]
...to discard the output:
wget -qO- $url &> /dev/null
> redirects application output (to a file). if > is preceded by ampersand, shell redirects all outputs (error and normal) to the file right of >. If you don't specify ampersand, then only normal output is redirected.
./app &&g...
How can I inject a property value into a Spring Bean which was configured using annotations?
...nt to grab a property from a Properties object. It also shows that you can apply @Value to fields:
@Value("#{myProperties['github.oauth.clientId']}")
private String githubOauthClientId;
Here is a blog post I wrote about this for a little more info.
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When to call activity context OR application context?
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getApplicationContext() is almost always wrong. Ms. Hackborn (among others) have been very explicit that you only use getApplicationContext() when you know why you are using getApplicationContext() and only when you need to use ...
java.net.ConnectException: localhost/127.0.0.1:8080 - Connection refused
I am using xampp apache server to serve resources to the application from my machine. But i am getting the above error.
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Bad arguments to +：The operation + cannot accept the arguments:, [&qu...
原因是加号+前面是空字符串，不能有效地转换成数字，所以报错。
比如"123"这个字符串可以自动转数字，但是空文本不行。
文本要判断空，然后给数字 0。
同理，空文本不但不能转数字，也不能转列表、字典...
appinventor2中求某个值在列表中的索引用什么方法？ - App Inventor 2 中文...
使用“求对象在列表中的位置”方法就可以了：
返回指定对象在列表中的位置，从 1 开始，如果不在列表中，则返回 0。
相应地，知道了索引，从列表中取值得方法是：选择列表中索引值对应的列表项返回给定列表中给定索...