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How do you check if a variable is an array in JavaScript? [duplicate]
...pretty code and not so much on performance. Note that checking for numbers does not work as variable instanceof Number always returns false. Update: instanceof now goes 2/3 the speed!
So yet another update
Object.prototype.toString.call(variable) === '[object Array]';
This guy is the slowest for...
How do I align views at the bottom of the screen?
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In a ScrollView this doesn't work, as the RelativeLayout would then overlap whatever is in the ScrollView at the bottom of the page.
I fixed it using a dynamically stretching FrameLayout :
<ScrollView
xmlns:android="http://schemas.andro...
Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...he sensible thing - in the case of character, it runs strptime first, then does the conversion from POSIXlt to POSIXct.
It makes sense that strptime is faster, because strptime only handles character input whilst the others try to determine which method to use from input type. It should also be a b...
Maintain model of scope when changing between views in AngularJS
...en the page refreshes, not how to persist it when the route changes, so it doesn't answer the question. Plus it will not work for apps that don't use routes. Plus it doesn't show where sessionStorage.restoreState is set to "true". For a correct solution to persist data when the page refreshes, look ...
Acronyms in CamelCase [closed]
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Also, being stated by Microsoft doesn't make something "correct".
– Sam
Sep 16 '14 at 2:31
54
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pip installing in global site-packages instead of virtualenv
... and if our mutual problem had the same cause, it should work. If it still doesn't, you're on the right track, anyway. I went through the same problem solving routine as you did, which piping over and over, following the stack trace, etc.
Make absolutely sure that
/Users/kristof/VirtualEnvs/testpy...
ng-model for `` (with directive DEMO)
...ing Demo of Directive that Works with ng-model
The core ng-model directive does not work with <input type="file"> out of the box.
This custom directive enables ng-model and has the added benefit of enabling the ng-change, ng-required, and ng-form directives to work with <input type="file"&g...
How do I intercept a method call in C#?
...eated just like any other variable and you could have a "method hook" that does what he wants.
– RCIX
Aug 26 '09 at 4:18
3
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How do I write a correct micro-benchmark in Java?
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@SanjayT.Sharma: Well, the intention is that it actually does. While it's not strictly guaranteed, it's actually a pretty strong hint. Will edit to be clearer.
– Jon Skeet
Apr 20 '13 at 8:02
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jQuery - Get Width of Element when Not Visible (Display: None)
...me, browser should give you that correct element size.
Sadly, JavaScript does not provide any direct event to notify when element is showed or hidden. However, I create some function based on DOM Attribute Modified API that will execute callback function when visibility of element is changed.
$('...