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Get distance between two points in canvas

...as drawing tab and want lineWidth to be based on distance between two last mousemove coordinate updates. I will make translation of distance to width myself, I just need to know how to get distance between those points (I already have coordinates of those pointes). ...
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Is HttpClient safe to use concurrently?

In all the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the sam>mem> instance of HttpClient . ...
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How can I import one Gradle script into another?

I have a complex gradle script that wraps up a load of functionality around building and deploying a number of netbeans projects to a number of environm>mem>nts. ...
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How to align this span to the right of the div?

I have the following HTML: 5 Answers 5 ...
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Objective-C - Remove last character from string

In Objective-C for iOS, how would I remove the last character of a string using a button action? 4 Answers ...
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postgresql - add boolean column to table set default

Is this proper postgresql syntax to add a column to a table with a default value of false 5 Answers ...
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Help with C# generics error - “The type 'T' must be a non-nullable value type”

I'm new to C# and don't understand why the following code doesn't work. 4 Answers 4 ...
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What is “function*” in JavaScript?

...ross re-entrances. Calling a generator function does not execute its body imm>mem>diately; an iterator object for the function is returned instead. When the iterator's next() m>mem>thod is called, the generator function's body is executed until the first yield expression, which specifies the value to be ret...
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Are static fields open for garbage collection?

Given an hypothetical utility class that is used only in program setup: 6 Answers 6 ...
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Using python “with” statem>mem>nt with try-except block

Is this the right way to use the python "with" statem>mem>nt in combination with a try-except block?: 4 Answers ...