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Getting request payload from POST request in Java servlet
...ols, all the content is in the Request Payload section in the headers tab, and the content is there, and I know that the POST is being received by the doPost method, but it just comes up blank.
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In Typescript, How to check if a string is Numeric
...9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected with NaN). Use:
isNaN(maybeNumber) // returns true if NaN, otherwise false
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Is there a more elegant way of adding an item to a Dictionary safely?
... Add if the existence of the key indicates a bug (so you want it to throw) and the indexer otherwise. (It's a bit like the difference between casting and using as for reference conversions.)
If you're using C# 3 and you have a distinct set of keys, you can make this even neater:
var currentViews =...
Getting the caller function name inside another function in Python? [duplicate]
...
There are two ways, using sys and inspect modules:
sys._getframe(1).f_code.co_name
inspect.stack()[1][3]
The stack() form is less readable and is implementation dependent since it calls sys._getframe(), see extract from inspect.py:
def stack(context=...
Show DialogFragment with animation growing from a point
...styles.xml add your custom theme:
<style name="MyCustomTheme" parent="@android:style/Theme.Panel">
<item name="android:windowAnimationStyle">@style/MyAnimation.Window</item>
</style>
<style name="MyAnimation.Window" parent="@android:style/Animation.Activity">
...
Create instance of generic type whose constructor requires a parameter?
... will need to ensure yourself regarding the specific constructor existing, and this kind of requirement may be a code smell (or rather something you should just try to avoid in the current version on c#).
share
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How to copy part of an array to another array in C#?
...wouldn't add explicit names unless it made the code significantly clearer, and I'm not sure (in this case) that the parameter names by themselves would achieve that.
– Marc Gravell♦
Aug 6 '12 at 17:57
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SQLite - How do you join tables from different databases?
I have an application that uses a SQLite database and everything works the way it should. I'm now in the process of adding new functionalities that require a second SQLite database, but I'm having a hard time figuring out how to join tables from the different databases.
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UITableView load more when scrolling to bottom like Facebook application
...'re at in the cellForRowAtIndexPath: method. This method is easy to understand and to implement :
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// Classic start method
static NSString *cellIdentifier = @"MyCell";
MyCell *cell = ...
Can one do a for each loop in java in reverse order?
...> original) {
return new Reversed<T>(original);
}
}
And you would use it like:
import static Reversed.reversed;
...
List<String> someStrings = getSomeStrings();
for (String s : reversed(someStrings)) {
doSomethingWith(s);
}
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