Top "Equality-operator" questions

The equality operator applies comparison between the operands.

Which equals operator (== vs ===) should be used in JavaScript comparisons?

I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals …

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Difference between == and === in JavaScript

What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?

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Using the equality operator == to compare two strings for equality in C

int main (int argc, **argv) { if (argv[1] == "-hello") printf("True\n"); else printf("False\n"); } # ./myProg -hello False Why? I …

c string pointers equality equality-operator
Comparing numpy arrays containing NaN

For my unittest, I want to check if two arrays are identical. Reduced example: a = np.array([1, 2, np.NaN]) b = …

python numpy nan equality-operator
Are == and != mutually dependent?

I'm learning about operator overloading in C++, and I see that == and != are simply some special functions which can be …

c++ operator-overloading equality equality-operator
Difference between == and === in JS

Possible Duplicates: Difference between == and === in JavaScript Javascript === vs == : Does it matter which “equal” operator I use? What's the difference …

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JavaScript - === vs == operators performance

A few weeks ago, I have read this thread Is < faster than <=? about comparison operators in C. It …

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Comparing pandas Series for equality when they contain nan?

My application needs to compare Series instances that sometimes contain nans. That causes ordinary comparison using == to fail, since nan != …

python pandas numpy nan equality-operator
Why is [] !== [] in JavaScript?

Why is [] !== [] in JavaScript? I read through https://developer.mozilla.org/en-US/docs/Web/JavaScript/Equality_comparisons_and_sameness but …

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