You should write : “&” is the bit wise operator and does not suit for boolean operations. The equivalent of “&&” is “and” in Python. A shorter way to check what you want is to use the “in” operator : You can check if anything is part of a an iterable with “in”, it works … Read more
you have enlosed start_date with single quote causing it to become string, use backtick instead SQLFiddle Demo
When inheriting you must show how to instantiate the parent template, if same template class T can be used do this: If something else is needed just change the line:
It seems wrong to me to set up an if/else statement just to use the else portion… Just negate your condition, and you’ll get the else logic inside the if:
As you’ve found, JavaScript doesn’t support operator overloading. The closest you can come is to implement toString (which will get called when the instance needs to be coerced to being a string) and valueOf (which will get called to coerce it to a number, for instance when using + for addition, or in many cases … Read more
+= is a shorthand operator. is the same as
Incrementing / Decrementing Operators ++ increment operator — decrement operator These can go before or after the variable. If put before the variable, the increment/decrement operation is done to the variable first then the result is returned. If put after the variable, the variable is first returned, then the increment/decrement operation is done. For example: Live example In the case above ++$i is … Read more
++x is called preincrement while x++ is called postincrement.
Nothing wrong: The modulo is the number after +. In general, for two numbers a and b, there is Let’s write a toy function: Update: Instead of using floor(a / b) to get quotient, we can also use a %/% b.
It’s a matter of operator precedence. || has a higher precedence than or. So, in between the two you have other operators including ternary (? 🙂 and assignment (=) so which one you choose can affect the outcome of statements. Here’s a ruby operator precedence table. See this question for another example using and/&&. Also, … Read more