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Validating email addresses using jQuery and regex

...not too sure how to do this. I need to validate email addresses using regex with something like this: 10 Answers ...
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How to avoid overflow in expr. A * B - C * D

I need to compute an expression which looks like: A*B - C*D , where their types are: signed long long int A, B, C, D; Each number can be really big (not overflowing its type). While A*B could cause overflow, at same time expression A*B - C*D can be really small. How can I compute it correctly...
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Using property() on classmethods

...ect): ... _var = 5 ... class __metaclass__(type): # Python 2 syntax for metaclasses ... pass ... @classmethod ... def getvar(cls): ... return cls._var ... @classmethod ... def setvar(cls, value): ... cls._var = value ... >>> foo.__metacl...
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iPhone: How to switch tabs with an animation?

...ally in a tab bar driven application using UITabBarController.selectedIndex . The problem I'm trying to solve is how to animate the transition between the views. ie. from the view of the current tab to the view of the selected tab. ...
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Update statement with inner join on Oracle

... That syntax isn't valid in Oracle. You can do this: UPDATE table1 SET table1.value = (SELECT table2.CODE FROM table2 WHERE table1.value = table2.DESC) WHERE table1....
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Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i

After updating to Xcode 5.1, I can no longer build my project for the 64-bit simulator, receiving this error: 18 Answers ...
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jQuery: Return data after ajax call success [duplicate]

... can pass in a callback function that handles the result: function testAjax(handleData) { $.ajax({ url:"getvalue.php", success:function(data) { handleData(data); } }); } Call it like this: testAjax(function(output){ // here you use the output }); // Note: the call won'...
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How can I plot separate Pandas DataFrames as subplots?

... matplotlib, and then plot the dataframes on a specific subplot using the ax keyword. For example for 4 subplots (2x2): import matplotlib.pyplot as plt fig, axes = plt.subplots(nrows=2, ncols=2) df1.plot(ax=axes[0,0]) df2.plot(ax=axes[0,1]) ... Here axes is an array which holds the different su...
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Why does installing Nokogiri on Mac OS fail with libiconv is missing?

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What exactly does big Ө notation represent?

...t the algorithm is both big-O and big-Omega in the given function. For example, if it is Ө(n), then there is some constant k, such that your function (run-time, whatever), is larger than n*k for sufficiently large n, and some other constant K such that your function is smaller than n*K for suffi...