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How do you build a Singleton in Dart?
...all when it's really a constructor definition. There's the _internal name. And there's the nifty language design point that Dart lets you start out (dart out?) using an ordinary constructor and then, if needed, change it to a factory method without changing all the callers.
– J...
Correct way to quit a Qt program?
How should I quit a Qt Program, e.g when loading a data file, and discovered file corruption, and user need to quit this app or re-initiate data file?
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When should I use the new keyword in C++?
I've been using C++ for a short while, and I've been wondering about the new keyword. Simply, should I be using it, or not?
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How to drop into REPL (Read, Eval, Print, Loop) from Python code
...trary point in its execution, even if the script was launched from the command line?
6 Answers
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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
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One little question: Why both the label and the input are wrapped ? How Rails decide what to wrap ?
– Misha Moroshko
Mar 11 '11 at 2:03
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How do I convert a string to a lower case representation?
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thx a lot I completely missed the strings package :) and googling didn't bring up anything
– oers
May 2 '12 at 10:16
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Cannot set boolean values in LocalStorage?
...e, as written in the description of Equal (==) in MDC*:
If the two operands are not of the same type, JavaScript converts the operands then applies strict comparison. If either operand is a number or a boolean, the operands are converted to numbers if possible; else if either operand is a string...
Default constructor with empty brackets
...lt;T>(ifs)), std::istream_iterator<T>());
Or, if you have C++11 and list-initialization (also known as uniform initialization) available:
std::vector<T> v{std::istream_iterator<T>{ifs}, std::istream_iterator<T>{}};
With this, there is no way it could be interpreted as...
Copy array items into another array
...rrayA.concat(arrayB);
The value of newArray will be [1, 2, 3, 4] (arrayA and arrayB remain unchanged; concat creates and returns a new array for the result).
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Remove 'a' from legend when using aesthetics and geom_text
... this was not that obvious. A proper example would have used the OP's code and just added the missing argument like this:
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geom_text(aes(label=Species), show_guide = F) +
..
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