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What's an elegant way to conditionally add a class to an HTML element in a view?

...usually you should represent success with boolean true or a numeric record ID, and failure with boolean false or nil. This way you can just test your variable: <div class="<%= 'ok' if @success %>"> A second form using the ternary ?: operator is useful if you want to choose between tw...
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Show hide fragment in android

I am developing application which contains 2 fragments and i want to show hide according to my need. Following code has simple example of my problem. This simple Fragmentactivity contains 1 button and one listfragment. ...
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Error: 10 $digest() iterations reached. Aborting! with dynamic sortby predicate

... Please check this jsFiddle. (The code is basically the same you posted but I use an element instead of the window to bind the scroll events). As far as I can see, there is no problem with the code you posted. The error you mentioned normally occ...
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How to get HTTP Response Code using Selenium WebDriver

...lenium2/WebDriver and want to test if HTTP Request returns an HTTP 403 Forbidden. 9 Answers ...
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Re-sign IPA (iPhone)

...d us issues was the Entitlements file, if you have one, must match the app id provided by Apple. Since we were changing the bundle id, the entitlements did not match. The app would run, but the keychain would clear after each run. – tjg184 Aug 24 '11 at 17:39...
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How to implement onBackPressed() in Fragments?

Is there a way in which we can implement onBackPressed() in Android Fragment similar to the way in which we implement in Android Activity? ...
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Real mouse position in canvas [duplicate]

... the element itself. Example of integration in your code: //put this outside the event loop.. var canvas = document.getElementById("imgCanvas"); var context = canvas.getContext("2d"); function draw(evt) { var pos = getMousePos(canvas, evt); context.fillStyle = "#000000"; context.fill...
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How do I verify/check/test/validate my SSH passphrase?

...er passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /tmp/my_key. Your public key has been saved in /tmp/my_key.pub. The key fingerprint is: de:24:1b:64:06:43:ca:76:ba:81:e5:f2:59:3b:81:fe rob@Robs-MacBook-Pro.local The key's randomart image is:...
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Check whether a path is valid in Python without creating a file at the path's target

...rno.ERANGE. (This appears to be an OS-level bug, otherwise referred to as "selective interpretation" of the POSIX standard.) Under all other OSes, errno.ENAMETOOLONG. Crucially, this implies that only pathnames residing in existing directories are validatable. The os.stat() and os.lstat() functi...
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I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome

... My advice is to avoid any image names; class names or ID's with the words: Advert Advertise in their name! I ran some tests and Ad blockers regularly block any direct content with these names either within the CSS file, Div or Span Layers...