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How does this checkbox recaptcha work and how can I use it?

... Excerpt from the email: We expect to move all existing reCAPTCHA sites to the new API in 2015. – Timothy Zorn Sep 11 '14 at 3:29 1 ...
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jQuery: serialize() form and other parameters

...onment, then none of these answers should be used. The form should contain all information (in hidden fields if necessary) so that it can be serialised in a single call. This way if JS is disabled or fails, the form submission should still have a failsafe and include all data when sent. ...
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What is the difference between Python's list methods append and extend?

... Actually there's a big difference - x + [4, 5] gives you a new list assigned to x - x.extend() mutates the original list. I elaborate in my answer here below. – Aaron Hall♦ Jul 17 '17 at 1...
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What is the maximum value for an int32?

...bout 1 billion. One of the 32 bits is used for sign, so the max value is really only 2^31, which is about twice the amount you get for 2^(3*10): 2 billion. – 16807 Dec 3 '13 at 22:24 ...
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Determine whether an array contains a value [duplicate]

... } return index; }; } return indexOf.call(this, needle) > -1; }; You can use it like this: var myArray = [0,1,2], needle = 1, index = contains.call(myArray, needle); // true CodePen validation/usage ...
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How to align absolutely positioned element to center?

... All you have to do is, make sure your parent DIV has position:relative and the element you want center, set it a height and width. use the following CSS .layer { width: 600px; height: 500px; display: block; pos...
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Android AsyncTask testing with Android Test Framework

...some service which worked with Executors, and I needed to have my service callbacks sync-ed with the test methods from my ApplicationTestCase classes. Usually the test method itself finished before the callback would be accessed, so the data sent via the callbacks would not be tested. Tried applying...
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“Keep Me Logged In” - the best approach

...e algorithm that you used. For example: md5(salt+username+ip+salt) Now, all an attacker needs to do is brute force the "salt" (which isn't really a salt, but more on that later), and he can now generate all the fake tokens he wants with any username for his IP address! But brute-forcing a salt is...
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How do I disable a Pylint warning?

... @Head Geek: 0.21.3, astng 0.20.3 and common 0.52.1 actually (the latest when I installed it, more recent than yours) – Chris Morgan Dec 3 '10 at 22:03 1 ...
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Is there a limit to the length of HTML attributes?

... element's attribute specification list (which should be the total size of all attributes for that element). The note above mentions that fixed limits should be avoided, however, so it's likely that there is no real limit other than available memory in most implementations. HTML 5 HTML 5 seems to...