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What is the difference between map and flatMap and a good use case for each?

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jQuery - setting the selected value of a select control via its text description

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Is R's apply family more than syntactic sugar?

... 154 The apply functions in R don't provide improved performance over other looping functions (e.g....
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Using switch statement with a range of value in each case?

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How can I remove a flag in C?

... the flag you want to unset. A Bitwise NOT inverts every bit (i.e. 0 => 1, 1 => 0). flags = flags & ~MASK; or flags &= ~MASK;. Long Answer ENABLE_WALK = 0 // 00000000 ENABLE_RUN = 1 // 00000001 ENABLE_SHOOT = 2 // 00000010 ENABLE_SHOOTRUN = 3 // 00000011 value = ENABL...
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Paste multiple columns together

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Determining if a variable is within range?

... if i.between?(1, 10) do thing 1 elsif i.between?(11,20) do thing 2 ... share | improve this answer | follo...
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C语言面试那些事儿──一道指针与数组问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...题首先看如下代码:int main(int argc, char** argv){ int a[5] = {1,2,3,4,5}; int* ptr = (int*)(&a + 1); ...首先看如下代码: int main(int argc, char** argv) { int a[5] = {1,2,3,4,5}; int* ptr = (int*)(&a + 1); printf("%d,%d\n", *(a+1), *(ptr-1)); return 0...
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Checking if a string can be converted to float in Python

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design a stack such that getMinimum( ) should be O(1)

... 180 EDIT: This fails the "constant space" constraint - it basically doubles the space required. I ...