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Checking if an Android application is running in the background
By background, I mean none of the application's activities are currently visible to the user?
30 Answers
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How to reverse a string in Go?
... the length of a string/Array/Slice etc... Here's why? - len() in Go means the size of the input in bytes. It does not correspond to its length. - Not all utf8's runes are of the same size. It can be either 1, 2, 4, or 8. - You should use unicode/ut8 package's method RuneCountInString to...
Using Node.JS, how do I read a JSON file into (server) memory?
... I think JSON.parse is synchronous, its directly from v8, which means even with the Async way, people have to be careful with large JSON files. since it would tie up node.
– Sean_A91
Aug 3 '15 at 4:29
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How to use ELMAH to manually log errors
... Control Services with a SignInResponseMessage. Elmah.ErrorLog.GetDefault did work in that scenario
– Adam
Feb 27 '13 at 1:17
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Counting the occurrences / frequency of array elements
...technique for wider usage. Storing the values as object keys to count them means you're casting those values to strings and then counting that value. [5, "5"] will simply say you've got "5" two times. Or counting instances some different objects is just gonna tell you there's a lot of [object Object...
How to redirect 404 errors to a page in ExpressJS?
...outer" positions our routes
// above the middleware defined below,
// this means that Express will attempt
// to match & call routes _before_ continuing
// on, at which point we assume it's a 404 because
// no route has handled the request.
app.use(app.router);
// Since this is the last non-er...
Opacity of div's background without affecting contained element in IE 8?
...page for more info: http://css-tricks.com/rgba-browser-support/
The down-side, is that this doesn't work in IE8 or lower. The page I linked above also lists a few other browsers it doesn't work in, but they're all very old by now; all browsers in current use except IE6/7/8 will work with rgba colou...
How to get Ruby / Homebrew / RVM to work on Yosemite?
...
Editing the script means brew update won't work; there are local edits to tracked files which causes the git pull to fail.
I did this, which I suspect is cleaner:
cd /usr/local/Library
git pull -q origin refs/heads/master:refs/remotes/origin/...
http HEAD vs GET performance
...ely.
For example, suppose you want to check if resource 123 exists. A 200 means "yes" and a 404 means "no":
HEAD /resources/123 HTTP/1.1
[...]
HTTP/1.1 404 Not Found
[...]
However, if the "yes" or "no" you want from your REST service is a part of the resource itself, rather than meta data, you ...
Download file from an ASP.NET Web API method using AngularJS
...rowser.
Internet Explorer 11 Support (Fixed)
Note: Internet Explorer 11 did not like using the msSaveBlob function if it had been aliased - perhaps a security feature, but more likely a flaw, So using var saveBlob = navigator.msSaveBlob || navigator.webkitSaveBlob ... etc. to determine the availab...