It means not equal to. It was taken from ABC (python’s predecessor) see here: x < y, x <= y, x >= y, x > y, x = y, x <> y, 0 <= d < 10 Order tests (<> means ‘not equals’) I believe ABC took it from Pascal, a language Guido began programming with. It has now been removed in … Read more
Add a second });. When properly indented, your code reads You never closed the outer $(function() {.
A static variable inside a function keeps its value between invocations. A static global variable or a function is “seen” only in the file it’s declared in (1) is the more foreign topic if you’re a newbie, so here’s an example: This prints: This is useful for cases where a function needs to keep some … Read more
Math object reference Examples Positive Negative Positive – Larger numbers Negative – Larger numbers
Declaration A prototype for a function which takes a function parameter looks like the following: This states that the parameter f will be a pointer to a function which has a void return type and which takes a single int parameter. The following function (print) is an example of a function which could be passed to func as a parameter because it is … Read more
Yes, they do completely different things. pass simply does nothing, while continue goes on with the next loop iteration. In your example, the difference would become apparent if you added another statement after the if: After executing pass, this further statement would be executed. After continue, it wouldn’t.
To complement marsze’s helpful answer: ${…} (enclosing the variable name in { and }) is indeed always necessary if a variable name contains special characters, such as spaces, ., or -. Not special are _ and – surprisingly and problematically – ?. Note: : is invariably interpreted as terminating a PowerShell drive reference, in the context of namespace variable notation, irrespective of whether {…} enclosure is used or required (e.g., in $env:USERNAME or ${env:USERNAME}, env refers to the PowerShell drive representing all environment variables). In the context … Read more
you have an else statement after a for loop you probably have to make a Boolean variable to do this one. there are various ways to do it, but here’s one that I would probably use
I notice that I can do things like 2 << 5 to get 64 and 1000 >> 2 to get 250. Also I can use >> in print: What is happening here?
TL;DR Error #1064 means that MySQL can’t understand your command. To fix it: Read the error message. It tells you exactly where in your command MySQL got confused. Examine your command. If you use a programming language to create your command, use echo, console.log(), or its equivalent to show the entire command so you can see it. Check the manual. By comparing against what … Read more