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Can a C# lambda expression have more than one statement?
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(I'm assuming you're really talking about multiple statements rather than multiple lines.)
You can use multiple statements in a lambda expression using braces, but only the syntax which doesn't use braces can be converted into an expressi...
Javascript swap array elements
Is there any simpler way to swap two elements in an array?
31 Answers
31
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Determine if two rectangles overlap each other?
I am trying to write a C++ program that takes the following inputs from the user to construct rectangles (between 2 and 5): height, width, x-pos, y-pos. All of these rectangles will exist parallel to the x and the y axis, that is all of their edges will have slopes of 0 or infinity.
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C++形参与实参的区别（实例解析） - C/C++ - 清泛网 - 专注C/C++及内核技术
...中的值不会变化。
参考如下示例：
void Exchg1(int x, int y)
{
int tmp;
tmp=x;
x=y;
y=tmp;
printf("Exchg1:x=%d,y=%d\n",x,y);
}
void Exchg2(int &x, int &y)
{
int tmp;
tmp=x;
x=y;
y=tmp;
printf("Exchg2:x=%d,y=%d\n",x,y);
}
void Exchg3(int *x, int *y)
{
i...
Finding the max value of an attribute in an array of objects
I'm looking for a really quick, clean and efficient way to get the max "y" value in the following JSON slice:
13 Answers
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What's the difference between a continuation and a callback?
...ions, and it's mind boggling how the simplest of explanations can so utterly confound a JavaScript programmer like myself. This is especially true when most articles explain continuations with code in Scheme or use monads.
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What does a lazy val do?
I noticed that Scala provide lazy vals . But I don't get what they do.
7 Answers
7
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javascript: recursive anonymous function?
Let's say I have a basic recursive function:
19 Answers
19
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How to create a HashMap with two keys (Key-Pair, Value)?
I have a 2D array of Integers. I want them to be put into a HashMap. But I want to access the elements from the HashMap based on Array Index. Something like:
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How to test multiple variables against a value?
I'm trying to make a function that will compare multiple variables to an integer and output a string of three letters. I was wondering if there was a way to translate this into Python. So say:
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