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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)

...self generates an error. EDIT To avoid endless loop, remove the onerror from it at once. <img src="imagenotfound.gif" alt="Image not found" onerror="this.onerror=null;this.src='imagefound.gif';" /> By calling this.onerror=null it will remove the onerror then try to get the alternate imag...
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“Application tried to present modally an active controller”?

...r (i have the reference of the viewController in the TabBarViewController) from different view controllers and it was crashing with the above message. In that case to avoid presenting you can use viewController.isBeingPresented !viewController.isBeingPresented { // Present your View...
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How to set the current working directory? [duplicate]

...swer this question. The reputation requirement helps protect this question from spam and non-answer activity. Not the answer you're looking for? Browse other questions t...
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How to get full path of a file?

...readlink takes me back to the parent dir where the symbolic link generates from, but this ignores it. – Sukhi May 26 '15 at 11:11 ...
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Open-Source Examples of well-designed Android Applications? [closed]

...ications that can be valuable to analyze, and to learn android programming from? 10 Answers ...
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How to rotate portrait/landscape Android emulator? [duplicate]

I am new to Android development. I know if you change a android phone from portrait to landscape sometimes the app relays its self out on the screen.. so how do I simulate rotating a phone with the emulator? On the Blackberry emulators there's a button in the menu to turn the phone, but I can't f...
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How to disable “Save workspace image?” prompt in R?

... click on "Properties", and add --no-save to the command that starts R. (from http://tolstoy.newcastle.edu.au/R/help/05/03/1115.html) If you are using a different editor than Rgui, you have to pass --no-save to the R command line when starting R ...
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How to view file history in Git?

.../b If you want to get an overview over all the differences that happened from commit to commit, use git log or git whatchanged with the patch option: # include patch displays in the commit history git log -p git whatchanged -p # only get history of those commits that touch specified paths git log...
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Javascript: Round up to the next multiple of 5

I need a utility function that takes in an integer value (ranging from 2 to 5 digits in length) that rounds up to the next multiple of 5 instead of the nearest multiple of 5. Here is what I got: ...
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Subtract two variables in Bash

...ay_sec - sanity_check_duration_start_time_delay_sec" (removing dollar sign from variables) – Sandeepan Nath Feb 28 '17 at 14:56 add a comment  |  ...