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How can I return to a parent activity correctly?
...ng startActivityForResult() and override onActivtyResult() in Activity A.
Now in Activity B just call finish() on button Up. So now you directed to Activity A's onActivityResult() without creating of Activity A again..
shar...
req.body empty on posts
...rlencoded data, not multipart
As @SujeetAgrahari mentioned, body-parser is now inbuilt with express.js.
Use app.use(express.json()); to implement it in recent versions.
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Fast stable sorting algorithm implementation in javascript
... stable sort.
I've written an article about it on my blog if you want to know more about this technique and how to implement it: http://blog.vjeux.com/2010/javascript/javascript-sorting-table.html
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Is null check needed before calling instanceof?
... was part of Java 1.0, released almost 20 years ago. Changing the behavior now in a way that would break existing code is unlikely, absent some benefit that outweighs that huge cost. Twenty years ago, maybe there could have been arguments for returning true iff the argument could be cast, or throwin...
How can I find the number of arguments of a Python function?
How can I find the number of arguments of a Python function? I need to know how many normal arguments it has and how many named arguments.
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How are parameters sent in an HTTP POST request?
...are what it looks like, so I won't show an example, but it can be good to know that it exists.
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How to convert current date into string in java?
...
FYI, these troublesome classes are now legacy, supplanted by the java.time classes. See Oracle Tutorial.
– Basil Bourque
Aug 18 '17 at 15:46
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How to make connection to Postgres via Node.js
...ta , 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, or how am I able to find out what it is.
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Check if two linked lists merge. If so, where?
...epoint). Let's denote them as follows:
x = a+c
y = b+c
Since we don't know the length, we will calculate x and y without additional iterations; you'll see how.
Then, we iterate each list and reverse them while iterating! If both iterators reach the merge point at the same time, then we find it...
Making interface implementations async
...Async();
IIO asSync = asAsync;
Console.WriteLine(DateTime.Now.Second);
asAsync.DoOperation();
Console.WriteLine("After call to sync func using Async iface: {0}",
DateTime.Now.Second);
asAsync.DoOperationAsync().GetAwaiter().GetResult();
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