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How to check file input size with jQuery?

I have a form with file upload capabilities and I would like to be able to have some nice client side error reporting if the file the user is trying to upload is too big, is there a way to check against file size with jQuery, either purely on the client or somehow posting the file back to the server...
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Do spurious wakeups in Java actually happen?

Seeing various locking related question and (almost) always finding the 'loop because of spurious wakeups' terms 1 I wonder, has anyone experienced such kind of a wakeup (assuming a decent hardware/software environment for example)? ...
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Static variables in member functions

Can someone please explain how static variables in member functions work in C++. 4 Answers ...
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How to add a string to a string[] array? There's no .Add function

I'd like to convert the FI.Name to a string and then add it to my array. How can I do this? 13 Answers ...
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Is it bad practice to make a setter return “this”?

Is it a good or bad idea to make setters in java return "this"? 27 Answers 27 ...
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What is hashCode used for? Is it unique?

I notice there is a getHashCode() method in every controls, items, in WP7, which return a sequence of number. Can I use this hashcode to identify an item? For example I want to identify a picture or a song in the device, and check it whereabout. This could be done if the hashcode given for specifi...
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How many spaces will Java String.trim() remove?

In Java, I have a String like this: 17 Answers 17 ...
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What are the barriers to understanding pointers and what can be done to overcome them? [closed]

Why are pointers such a leading factor of confusion for many new, and even old, college level students in C or C++? Are there any tools or thought processes that helped you understand how pointers work at the variable, function, and beyond level? ...
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How to recover a dropped stash in Git?

I frequently use git stash and git stash pop to save and restore changes in my working tree. Yesterday I had some changes in my working tree that I had stashed and popped, and then I made more changes to my working tree. I'd like to go back and review yesterday's stashed changes, but git stash ...
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Clearing NSUserDefaults

I'm using +[NSUserDefaults standardUserDefaults] to store application settings. This consists of roughly a dozen string values. Is it possible to delete these values permanently instead of just setting them to a default value? ...