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Difference between os.getenv and os.environ.get
...but the body also includes os.environ vs. os.environ.get() so this answer correct in at least some ways - incomplete, but correct.
– FKEinternet
Jul 1 '19 at 18:12
3
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How do I avoid capturing self in blocks when implementing an API?
I have a working app and I'm working on converting it to ARC in Xcode 4.2. One of the pre-check warnings involves capturing self strongly in a block leading to a retain cycle. I've made a simple code sample to illustrate the issue. I believe I understand what this means but I'm not sure the "corre...
How can I pass a parameter to a Java Thread?
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You need to pass the parameter in the constructor to the Runnable object:
public class MyRunnable implements Runnable {
public MyRunnable(Object parameter) {
// store parameter for later user
}
public void run() {
}
}
and invoke it thus:
Runnable ...
Facebook access token server-side validation for iPhone app
...token that you got from step 1.
The debug endpoint basically dumps all information about a token, so it'll respond with something like this:
{
data: {
app_id: YOUR_APP_ID,
is_valid: true,
metadata: {
sso: "iphone-safari"
},
application: YOUR_...
regex for matching something if it is not preceded by something else
...l match if and only if the pattern is not preceded by certain characters. For example:
1 Answer
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Making Python loggers output all messages to stdout in addition to log file
...gs to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning , logger.critical , logger.error to go to their intended places but in addition always be copied to stdout . This is to avoid duplicating messages like:
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Why doesn't RecyclerView have onItemClickListener()?
I was exploring RecyclerView and I was surprised to see that RecyclerView does not have onItemClickListener() .
32 Ans...
What is the id( ) function used for?
...:
What is the number returned from the function?
It is "an integer (or long integer) which is guaranteed to be unique and constant for this object during its lifetime." (Python Standard Library - Built-in Functions) A unique number. Nothing more, and nothing less. Think of it as a social-secu...
Can you use @Autowired with static fields?
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In short, no. You cannot autowire or manually wire static fields in Spring. You'll have to write your own logic to do this.
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What are the differences between “git commit” and “git push”?
In a Git tutorial I'm going through, git commit is used to store the changes you've made.
15 Answers
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