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How to order events bound with jQuery
...quite good as you can use event.stopPropagation(), event.preventDefault(), etc to skip handlers and cancel or un-cancel the action.
$( '#mybutton' ).click( function(e) {
// Do stuff first
} );
$( '#mybutton' ).click( function(e) {
// Do other stuff first
} );
$( document ).delegate( '#m...
What optimizations can GHC be expected to perform reliably?
...many other possibilities - map followed by filter, filter followed by map, etc. Rather than hand-code a solution for each of them, so-called "stream fusion" was invented. This is a more complicated trick, which I won't describe here.
The long and short of it is: These are all special optimisation t...
Initializing a list to a known number of elements in Python [duplicate]
...urrently) 4 * 24 = 96 bins. It seems natural to me (with a C / C++ / C# / etc. background) to start by initializing each bin to 0. How is this an optimization, whether premature or not?
– Technophile
Dec 28 '14 at 20:19
...
Configure Microsoft.AspNet.Identity to allow email address as username
...ntity.EntityFramework 1.0.0-rc1, Microsoft.AspNet.Identity.Owin 1.0.0-rc1, etc and with the RTM releases yesterday, I updated them via NuGet this evening to RTM.
...
What is base 64 encoding used for?
...al: store the decimal value of each byte as three numbers: 045 112 101 037 etc. where each byte is represented by 3 bytes. The data bloats three-fold.
Hexadecimal: store the bytes as hex pairs: AC 47 0D 1A etc. where each byte is represented by 2 bytes. The data bloats two-fold.
Base-64 maps 3 byt...
Error-Handling in Swift-Language
...eyword) which let you achieve the same effect as finally blocks in Java/C#/etc
guard statement (using guard keyword) which let you write little less if/else code than in normal error checking/signaling code.
Swift 1
Runtime errors:
As Leandros suggests for handling runtime errors (like network...
passport.js passport.initialize() middleware not in use
...de. Earlier in your program are you making any calls to app.get, app.post, etc? Those will cause the router to be added to the stack earlier than you intend. Show us ALL the revelant code starting with when you invoke the express() function to get your app object. That's my 2nd guess.
...
CSS transition shorthand with multiple properties?
...needed to animate:
// SCSS - Multiple Animation: Properties | durations | etc.
// on hover, animate div (width/opacity) - from: {0px, 0} to: {100vw, 1}
.base {
max-width: 0vw;
opacity: 0;
transition-property: max-width, opacity; // relative order
transition-duration: 2s, 4s; // effects re...
How do you create a static class in C++?
... static void myMethod() ;
} ;
// source
void MyClass::myMethod()
{
// etc.
}
But you must remember that "static classes" are hacks in the Java-like kind of languages (e.g. C#) that are unable to have non-member functions, so they have instead to move them inside classes as static methods.
In...
Python - When to use file vs open
...classes in the io library (somewhat similar to Java with buffered readers, etc.)
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