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How can I check if my python object is a number? [duplicate]
...thon is duck typed and mixing somewhat compatible types usually works, yet it will barf an error message when some operation doesn't make sense (4 - "1"), so manually checking this is rarely really needed. It's just a bonus. You can add it when finishing a module to avoid pestering others with imple...
PHP Session Fixation / Hijacking
...lems. I've been reading the following two articles on Chris Shiflett's website:
5 Answers
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Is the practice of returning a C++ reference variable evil?
This is a little subjective I think; I'm not sure if the opinion will be unanimous (I've seen a lot of code snippets where references are returned).
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Getting the index of the returned max or min item using max()/min() on a list
I'm using Python's max and min functions on lists for a minimax algorithm, and I need the index of the value returned by max() or min() . In other words, I need to know which move produced the max (at a first player's turn) or min (second player) value.
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How to compare arrays in JavaScript?
...in your code.");
// attach the .equals method to Array's prototype to call it on any array
Array.prototype.equals = function (array) {
// if the other array is a falsy value, return
if (!array)
return false;
// compare lengths - can save a lot of time
if (this.length != arr...
How to make lists contain only distinct element in Python? [duplicate]
I have a list in Python, how can I make it's values unique?
10 Answers
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Is gcc std::unordered_map implementation slow? If so - why?
We are developing a highly performance critical software in C++. There we need a concurrent hash map and implemented one. So we wrote a benchmark to figure out, how much slower our concurrent hash map is compared with std::unordered_map .
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Get selected value in dropdown list using JavaScript
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edited Nov 5 '14 at 15:53
stanleyxu2005
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How to use a decimal range() step value?
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Rather than using a decimal step directly, it's much safer to express this in terms of how many points you want. Otherwise, floating-point rounding error is likely to give you a wrong result.
You can use the linspace function from the NumPy library (which isn't part ...
os.walk without digging into directories below
How do I limit os.walk to only return files in the directory I provide it?
20 Answers
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