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How to call a PHP function on the click of a button

...essfully"); }); }); }); In ajax.php <?php if (isset($_POST['action'])) { switch ($_POST['action']) { case 'insert': insert(); break; case 'select': select(); break; } } ...
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Understanding typedefs for function pointers in C

... can use it to declare variables and so on. For example: static void alarm_catcher(int signum) { fprintf(stderr, "%s() called (%d)\n", __func__, signum); } static void signal_catcher(int signum) { fprintf(stderr, "%s() called (%d) - exiting\n", __func__, signum); exit(1); } static str...
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Mock vs MagicMock

...orld' ... hello world >>> MagicMock()[1] <MagicMock name='mock.__getitem__()' id='4385349968'> You can "see" the methods added to MagicMock as those methods are invoked for the first time: >>> magic1 = MagicMock() >>> dir(magic1) ['assert_any_call', 'assert_called...
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Transposing a NumPy array

...range(10) then a is array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) as produced by a.__repr__(). This is a 1-dimensional (i.e. a.ndim --> 1) vector as indicated by the square brackets []. The array( ... ) is not seen when you do either print(a) or a.__str__(). – dtlussier ...
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How to run a program without an operating system?

...125\252' > main.img sudo apt-get install qemu-system-x86 qemu-system-x86_64 -hda main.img Outcome: Note that even without doing anything, a few characters are already printed on the screen. Those are printed by the firmware, and serve to identify the system. And on the T430 we just get a blank ...
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How to find out if an installed Eclipse is 32 or 64 bit version?

...e the line with text: plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.0.200.v20090519 then it is 64 bit. If it would be plugins/org.eclipse.equinox.launcher.win32.win32.x86_32_1.0.200.v20090519 then it is 32 bit. ...
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How to disable Django's CSRF validation?

... If you just need some views not to use CSRF, you can use @csrf_exempt: from django.views.decorators.csrf import csrf_exempt @csrf_exempt def my_view(request): return HttpResponse('Hello world') You can find more examples and other scenarios in the Django documentation: https:/...
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When would anyone use a union? Is it a remnant from the C-only days?

...For example, let's say you want to create your own Variant type: struct my_variant_t { int type; union { char char_value; short short_value; int int_value; long long_value; float float_value; double double_value; void* ptr_value; }...
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How to check if a variable is a dictionary in Python?

...t, defaultdict, or Counter from the collections module: if isinstance(any_object, dict): But there are even more flexible options. Supporting abstractions: from collections.abc import Mapping if isinstance(any_object, Mapping): This allows the user of your code to use their own custom implem...
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iOS 7's blurred overlay effect using CSS?

...e want to try, so I did, check out the example here: http://codepen.io/Edo_B/pen/cLbrt Using: HW Accelerated CSS filters JS for class assigning and arrow key events Images CSS Clip property that's it. I also believe this could be done dynamically for any screen if using canvas to copy the cu...