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What is the syntax rule for having trailing commas in tuple definitions?
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In all cases except the empty tuple the comma is the important thing. Parentheses are only required when required for other syntactic reasons: to distinguish a tuple from a set of function arguments, operator precedence, or to allow line breaks.
The trailing comma for tuples, lis...
Hidden Features of JavaScript? [closed]
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You don't need to define any parameters for a function. You can just use the function's arguments array-like object.
function sum() {
var retval = 0;
for (var i = 0, len = arguments.length; i < len; ++i) {
retval += arguments[i];
}
return...
What guidelines for HTML email design are there? [closed]
What guidelines can you give for rich HTML formatting in emails while maintaining good visual stability across many clients and web based email interfaces?
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How to use 'cp' command to exclude a specific directory?
I want to copy all files in a directory except some files in a specific sub-directory.
I have noticed that cp command didn't have the --exclude option.
So, how can I achieve this?
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Convert Python program to C/C++ code? [closed]
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Yes. Look at Cython. It does just that: Converts Python to C for speedups.
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What happens if you don't commit a transaction to a database (say, SQL Server)?
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As long as you don't COMMIT or ROLLBACK a transaction, it's still "running" and potentially holding locks.
If your client (application or user) closes the connection to the database before committing, any still running transactions will be rolled back...
Why does python use 'else' after for and while loops?
I understand how this construct works:
21 Answers
21
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Proper stack and heap usage in C++?
I've been programming for a while but It's been mostly Java and C#. I've never actually had to manage memory on my own. I recently began programming in C++ and I'm a little confused as to when I should store things on the stack and when to store them on the heap.
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scp with port number specified
I'm trying to scp a file from a remote server to my local machine. Only port 80 is accessible.
11 Answers
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AngularJS and its use of Dollar Variables
...cross $scope.$value and $scope.value , then it will avoid checking the former since it's prefixed with a dollar character in its variable name?
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