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Using jquery to get element's position relative to viewport
...body.scrollLeft;
}
return new Array(xScroll,yScroll)
}
// Adapted from getPageSize() by quirksmode.com
function getPageHeight() {
var windowHeight
if (self.innerHeight) { // all except Explorer
windowHeight = self.innerHeight;
} else if (document.documentElement &&...
In C#, what happens when you call an extension method on a null object?
...
Addition to the correct answer from Marc Gravell.
You could get a warning from the compiler if it is obvious that the this argument is null:
default(string).MyExtension();
Works well at runtime, but produces the warning "Expression will always cause a ...
Python: Find in list
... match one of the items or maybe you are using a float value which suffers from inaccuracy.
As for your second question: There's actually several possible ways if "finding" things in lists.
Checking if something is inside
This is the use case you describe: Checking whether something is inside a l...
What's the difference between the 'ref' and 'out' keywords?
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From MSDN: A ref parameter must be initialized before use, while an out parameter does not have to be explicitly initialized before being passed and any previous value is ignored.
– Shiva Kumar
...
How do I copy an object in Java?
...elf does not implement Cloneable.
copyProperties will Copy property values from the origin bean to the destination bean for all cases where the property names are the same.
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What do helper and helper_method do?
...vailable for the view. This is used for any method that you need to access from both controllers and helpers/views (standard helper methods are not available in controllers). e.g. common use case:
#application_controller.rb
def current_user
@current_user ||= User.find_by_id!(session[:user_id])
en...
Why would one use the Publish/Subscribe pattern (in JS/jQuery)?
...ent, the View catches it and updates itself. You don’t have any overhead from the publish/subscribe, it helps you for the decoupling. In the same manner you can keep your application logic in the Controller for example (MVVM, MVP it’s not exactly a Controller) and keep the View as simple as poss...
Sort array of objects by string property value
...mberOfProperties = props.length;
/* try getting a different result from 0 (equal)
* as long as we have extra properties to compare
*/
while(result === 0 && i < numberOfProperties) {
result = dynamicSort(props[i])(obj1, obj2);
i++;
...
Recommended website resolution (width and height)? [closed]
...this.
Treat mobile as a first-class citizen. You are getting more traffic from mobile devices all the time. These introduce even more screen sizes. You can still optimize for 960, but using responsive web design techniques means your page will adjust based on the screen size.
Log browser display ...
How to install node.js as windows service?
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It also has system logging built in.
There is an API to create scripts from code, i.e.
var Service = require('node-windows').Service;
// Create a new service object
var svc = new Service({
name:'Hello World',
description: 'The nodejs.org example web server.',
script: 'C:\\path\\to\\hello...