I used to multiply a numeric number to -1 just to get its additive inverse (negative value for positive numbers) and I found out that the (-) operator does it implicitly. int value = 10 int negativeValue = value * -1 int negativeValueAlso = -value

[code language="C#"] for (int i = 0; i < collection.Count; i++) { //do something with collection } [/code] I’ve done this before and for me, the efficient way is to store the Count property of the collection rather than access it everytime for the for loop check, lots of indirection involved (I hope...

Before, I used to think that in C, the assignment operator always evaluate to true. It is because of this context: [code language="C#"] while (intLeft == intRight) { //do whatever } [/code] If you mistyped the comparison operator (==) as a single equal sign (=) for assignment (of course it will compile...