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What is the “Execute Around” idiom?
...
Basically it's the pattern where you write a method to do things which are always required, e.g. resource allocation and clean-up, and make the caller pass in "what we want to do with the resource". For example:
public interface...
How to stretch div height to fill parent div - CSS
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Suppose you have
<body>
<div id="root" />
</body>
With normal CSS, you can do the following. See a working app https://github.com/onmyway133/Lyrics/blob/master/index.html
#root {
position: absolute;
top: 0;
left: 0;
height: 100%;
wi...
What is this Javascript “require”?
...hared space" among all scripts. Any script can freely define/modify/remove/call anything on the global scope.
In Node.js, each module has its own scope. A module cannot directly access things defined in another module unless it chooses to expose them. To expose things from a module, they must be ass...
How to add property to a class dynamically?
...oing on. Better late than never.
You can add a property to a class dynamically. But that's the catch: you have to add it to the class.
>>> class Foo(object):
... pass
...
>>> foo = Foo()
>>> foo.a = 3
>>> Foo.b = property(lambda self: self.a + 1)
>>...
node.js shell command execution
...pecting synchronous behavior while using stdout asynchronously. All of the calls in your run_cmd function are asynchronous, so it will spawn the child process and return immediately regardless of whether some, all, or none of the data has been read off of stdout. As such, when you run
console.log(f...
How do I run a Python program?
...ython code file somewhere, using "Save" or "Save as" in your editor. Lets call it 'first.py' in some folder, like "pyscripts" that you make on your Desktop.
Open a prompt (a Windows 'cmd' shell that is a text interface into the computer):
start > run > "cmd" (in the little box). OK. ...
IE7 does not understand display: inline-block
...gger inline-block behaviour in IE7, so we are happy.
This CSS will not validate, and can make your stylesheet messed up anyways, so using an IE7-only stylesheet through conditional comments could be a good idea.
<!–-[if IE 7]>
<link rel="stylesheet" href="ie7.css" type="text/css" />
...
Using a dispatch_once singleton model in Swift
... is a dictionary for multitons, then we have to manually synchronize/queue calls to it for each access, right?
– user3610227
Dec 31 '14 at 0:27
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In c# is there a method to find the max of 3 numbers?
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Well, you can just call it twice:
int max3 = Math.Max(x, Math.Max(y, z));
If you find yourself doing this a lot, you could always write your own helper method... I would be happy enough seeing this in my code base once, but not regularly.
(...
Express-js wildcard routing to cover everything under and including a path
...r more characters.
https://github.com/senchalabs/connect/blob/master/lib/middleware/router.js
If you have 2 routes that perform the same action you can do the following to keep it DRY.
var express = require("express"),
app = express.createServer();
function fooRoute(req, res, next) {
res.e...