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Why do we have map, fmap and liftM?
Why do we have three different functions that do essentially the same thing?
1 Answer
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Super-simple example of C# observer/observable with delegates
I recently started digging into C# but I can't by my life figure out how delegates work when implementing the observer/observable pattern in the language.
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PHP equivalent of .NET/Java's toString()
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Object of class Foo could not be converted to string. Is there a general solutions that can convert anything (arrays+objects+whatever) to a string?
– ripper234
Jan 3 '13 at 15:42
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What is the difference between const_iterator and non-const iterator in the C++ STL?
...wing thoughts on the topic. With simple pointers, one can say int const * foo; int * const foo; and int const * const foo;all three are valid and useful, each in their own way. std::vector<int> const bar should be the same as the second one, but it is unfortunately often treated like the thi...
How can I use “:” as an AWK field separator?
...s between the third case and all others. Example : awk 'BEGIN{print split("foo:bar",a)}' FS=":" file and awk 'BEGIN{FS=":"; print split("foo:bar",a)}' file
– kvantour
Dec 6 '18 at 19:20
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How can I set the Sender's address in Jenkins?
...ch is the same as the account email address. For example sake, say this is foo@mycompany.com. How can I make jenkins always send mail from foo@mycompany.com?
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Why are Oracle table/column/index names limited to 30 characters?
I can understand that many years ago there would be this kind of limitation, but nowadays surely this limit could easily be increased. We have naming conventions for objects, but there is always a case that turns up where we hit this limit - especially in naming foreign keys.
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How to set default value for form field in Symfony2?
...tatements within get's
I wouldn't, but you could.
return ( ! $this->hasFoo() ) ? 'default' : $this->foo;
Factory / instance.
Call a static function / secondary class which provides you a default Entity pre-populated with data. E.g.
function getFactory() {
$obj = new static();
$ob...
Python: Get the first character of the first string in a list?
How would I get the first character from the first string in a list in Python?
4 Answers
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How to check if an email address exists without sending an email?
I have come across this PHP code to check email address using SMTP without sending an email .
14 Answers
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