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Sequence contains no matching element
...tions are Single() (when you believe there's exactly one matching element) and SingleOrDefault() (when you believe there's exactly one or zero matching elements). I suspect that FirstOrDefault is the best option in this particular case, but it's worth knowing about the others anyway.
On the other h...
Extracting text OpenCV
I am trying to find the bounding boxes of text in an image and am currently using this approach:
10 Answers
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HTML5 Local Storage fallback solutions [closed]
I'm looking for javascript libraries and code that can simulate localStorage on browsers that do not have native support.
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Why are unnamed namespaces used and what are their benefits?
I just joined a new C++ software project and I'm trying to understand the design. The project makes frequent use of unnamed namespaces. For example, something like this may occur in a class definition file:
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How to use Morgan logger?
...uld do in Java with log4j (if you know java) where we instantiate a Logger and say log 'this'.
Then I dug in morgan code, turns out it is not that type of a logger, it is for automated logging of requests, responses and related data. When added as a middleware to an express/connect app, by default ...
Vim: insert the same characters across multiple lines
... busy during that time—it’s just waiting for you to press another key, and eventually times out. Two experiments for you: first, try pressing escape and then immediately pressing another key, like j or ^L. You should see that Vim wasn’t busy after all; it was just waiting. Second, try changing...
What does |= (ior) do in Python?
.... See examples below.
Sets
For example, the union of two assigned sets s1 and s2 share the following equivalent expressions:
>>> s1 = s1 | s12 # 1
>>> s1 |= s2 # 2
>>> s1.__ior__(s2) ...
Download the Android SDK components for offline install
Is it possible to download the Android SDK components for offline install without using the SDK Manager?
The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception)
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Sort Go map values by keys
...erating over a map with a range loop, the iteration order is
not specified and is not guaranteed to be the same from one iteration
to the next. Since Go 1 the runtime randomizes map iteration order, as
programmers relied on the stable iteration order of the previous
implementation. If you require a ...
What is the best way to trigger onchange event in react js
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For React 16 and React >=15.6
Setter .value= is not working as we wanted because React library overrides input value setter but we can call the function directly on the input as context.
var nativeInputValueSetter = Object.getOwnProp...