Is it possible to have a PHP function that is both recursive and anonymous? This is my attempt to get it to work, but it doesn’t pass in the function name. $factorial = function( $n ) use ( $factorial ) { if( $n <= 1 ) return 1; return $factorial( $n – 1 ) * … Read more
In Python, I am trying to sort by date with lambda. I can’t understand my error message. The message is: <lambda>() takes exactly 1 argument (2 given) The line I have is a = sorted(a, lambda x: x.modified, reverse=True) 5 Answers 5
I was reading some posts about closures and saw this everywhere, but there is no clear explanation how it works – everytime I was just told to use it…: // Create a new anonymous function, to use as a wrapper (function(){ // The variable that would, normally, be global var msg = “Thanks for visiting!”; … Read more
Summary Can you explain the reasoning behind the syntax for encapsulated anonymous functions in JavaScript? Why does this work: (function(){})(); but this doesn’t: function(){}();? What I know In JavaScript, one creates a named function like this: function twoPlusTwo(){ alert(2 + 2); } twoPlusTwo(); You can also create an anonymous function and assign it to a … Read more
