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A CORS POST request works from plain JavaScript, but why not with jQuery?
I'm trying to make a Cross Origin post request, and I got it working in plain JavaScript like this:
5 Answers
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How to drop a table if it exists?
...e an error if the table does not exist).
Instead, for a permanent table you can use
IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL
DROP TABLE dbo.Scores;
Or, for a temporary table you can use
IF OBJECT_ID('tempdb.dbo.#T', 'U') IS NOT NULL
DROP TABLE #T;
SQL Server 2016+ has a better way, ...
Javascript when to use prototypes
I'd like to understand when it is appropriate to use prototype methods in js. Should they always be used? Or are there cases where using them is not preferred and/or incurs a performance penalty?
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Efficient evaluation of a function at every cell of a NumPy array
Given a NumPy array A , what is the fastest/most efficient way to apply the same function, f , to every cell?
6 Ans...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
I am transitioning from Java to C++ and have some questions about the long data type. In Java, to hold an integer greater than 2 32 , you would simply write long x; . However, in C++, it seems that long is both a data type and a modifier.
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Java: random long number in 0
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Starting from Java 7 (or Android API Level 21 = 5.0+) you could directly use ThreadLocalRandom.current().nextLong(n) (for 0 ≤ x < n) and ThreadLocalRandom.current().nextLong(m, n) (for m ≤ x < n). See @Alex's answer for detail.
If you are stuck with Java 6 (or Android...
Check if a string has white space
I'm trying to check if a string has white space . I found this function but it doesn't seem to be working:
7 Answers
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How to send POST request in JSON using HTTPClient in Android?
I'm trying to figure out how to POST JSON from Android by using HTTPClient. I've been trying to figure this out for a while, I have found plenty of examples online, but I cannot get any of them to work. I believe this is because of my lack of JSON/networking knowledge in general. I know there are ...
How to urlencode data for curl command?
...to write a bash script for testing that takes a parameter and sends it through curl to web site. I need to url encode the value to make sure that special characters are processed properly. What is the best way to do this?
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What is the difference between `sorted(list)` vs `list.sort()`?
... sorts the list and replaces the original list, whereas sorted(list) returns a sorted copy of the list, without changing the original list.
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