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Computed read-only property vs function in Swift
...g done. Maybe something has to be computed or read from disk or from a database: In this case I use a function, even when only a simple value is returned. That way I can easily see whether a call is cheap (properties) or possibly expensive (functions).
We will probably get more clarity when Apple ...
Javascript - Track mouse position
... (Tested on IE8, IE11, Firefox 30, Chrome 38.)
If you really need a timer-based solution, you combine this with some state variables:
(function() {
var mousePos;
document.onmousemove = handleMouseMove;
setInterval(getMousePosition, 100); // setInterval repeats every X ms
function...
Circular dependency in Spring
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In the codebase I'm working with (1 million + lines of code) we had a problem with long startup times, around 60 seconds. We were getting 12000+ FactoryBeanNotInitializedException.
What I did was set a conditional breakpoint in Abstrac...
What's the difference between “declare class” and “interface” in TypeScript
...age). If you inherit from a class using extends (regardless of whether the base type was a declare class or a regular class) the compiler is going to generate all the code to hook up the prototype chain and forwarding constructors and what not.
If you try to inherit from a declare class that should...
What is a postback?
...ent and have seen the word postback thrown around. Coming from a non-web based background, what does a new web developer have to know about postbacks? (i.e. what are they and when do they arise?)
...
Find out who is locking a file on a network share
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Just in case someone looking for a solution to this for a Windows based system or NAS:
There is a built-in function in Windows that shows you what files on the local computer are open/locked by remote computer (which has the file open through a file share):
Select "Manage Computer" (Ope...
Should I use pt or px?
... inch like-on-a-ruler. Not an inch on a screen, which is totally arbitrary based on resolution.
Just like how pixels are dead-accurate on monitors for font-sizing, point sizes are dead-accurate on paper. For the best cross-browser and cross-platform results while printing pages, set up a print sty...
What is the difference between ng-if and ng-show/ng-hide
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ngIf
The ngIf directive removes or recreates a portion of the DOM tree based on an expression. If the expression assigned to ngIf evaluates to a false value then the element is removed from the DOM, otherwise a clone of the element is reinserted into the DOM.
<!-- when $scope.myValue is trut...
Do unix timestamps change across timezones?
... in terms of calculating a year. Now you'd think a year would be measured based upon the location of the center (the core) of the earth, right? When the earth's core is back in the same location it was ~365 days ago, it has been a year. It isn't measured that way. It is measured by a specific lo...
How to use Git and Dropbox together effectively?
...trol” in which I cover the reasoning behind my environment setup. It’s based on my Ruby on Rails development experience, but it can be applied to anything, really.
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