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How to make script execution wait until jquery is loaded

I am having a problem where the page is loading so fast, that jquery hasn't finished loading before it is being called by a subsequent script. Is there a way to check for the existence of jquery and if it doesn't exist, wait for a moment and then try again? ...
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How to check if a file is empty in Bash?

I have a file called diff.txt. Want to check if it is empty. Did something like this but couldn't get it working. 10 Answe...
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Can Python test the membership of multiple values in a list?

I want to test if two or more values have membership on a list, but I'm getting an unexpected result: 10 Answers ...
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How to use shell commands in Makefile

I'm trying to use the result of ls in other commands (e.g. echo, rsync): 2 Answers 2...
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How to create a database from shell command?

I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints? ...
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Linux: compute a single hash for a given folder & contents?

Surely there must be a way to do this easily! 15 Answers 15 ...
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Objective-C Static Class Level variables

I have a class Film, each of which stores a unique ID. In C#, Java etc I can define a static int currentID and each time i set the ID i can increase the currentID and the change occurs at the class level not object level. Can this be done in Objective-C? I've found it very hard to find an answer for...
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No secret option provided to Rack::Session::Cookie warning?

I am running Rails 3.2.3, Ruby 1.9 under Fedora 17. I get this warning, when I run rails s , and how do I fix? 7 Answers ...
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How do I prevent site scraping? [closed]

I have a fairly large music website with a large artist database. I've been noticing other music sites scraping our site's data (I enter dummy Artist names here and there and then do google searches for them). ...
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iPhone App Minus App Store?

If I create an application on my Mac, is there any way I can get it to run on an iPhone without going through the app store? ...