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Do I cast the result of malloc?

...e (alleged) desired type right next to the arithmetic you're doing for the raw size of that variable. I bet you could do an SO study that shows that malloc() bugs are caught much faster when there's a cast. As with assertions, annotations that reveal intent decrease bugs. Repeating yourself in a wa...
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jQuery: Get selected element tag name

... be helpful when comparing prop('tagName') result to a tag name. if($("my_selector").prop("tagName").toLowerCase() == 'div') or if($("my_selector").prop("tagName").toUpperCase() == 'DIV') – S.Thiongane Jun 4 '14 at 14:39 ...
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What is the perfect counterpart in Python for “while not EOF”

...sure performant reads. You can do the same with the stdin (no need to use raw_input(): import sys for line in sys.stdin: do_something() To complete the picture, binary reads can be done with: from functools import partial with open('somefile', 'rb') as openfileobject: for chunk in ite...
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Font Awesome icon inside text input element

...e placeholder attribute will simply ignore it. UPDATE The before content selector selects the input: input[type="text"]:before. You should select the wrapper: .wrapper:before. See http://jsfiddle.net/allcaps/gA4rx/ . I also added the placeholder suggestion where the wrapper is redundant. .wrap...
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How to use XPath in Python?

...thFreeContext(). This is not very Pythonic. If you are doing simple path selection, stick with ElementTree ( which is included in Python 2.5 ). If you need full spec compliance or raw speed and can cope with the distribution of native code, go with libxml2. Sample of libxml2 XPath Use import l...
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Dynamically adding a form to a Django formset with Ajax

...ice'); }); </script> In a javascript file: function cloneMore(selector, type) { var newElement = $(selector).clone(true); var total = $('#id_' + type + '-TOTAL_FORMS').val(); newElement.find(':input').each(function() { var name = $(this).attr('name').replace('-' + (t...
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R and version control for the solo data analyst

...sion control systems can do absolutely amazing things with compression and selective saving so this is pretty much a moot point. 3 What is a good strategy for getting started with version control for data analysis with R (e.g., examples, workflow ideas, software, links to guides)? Keep files t...
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How to loop through a HashMap in JSP?

...lt;%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <select name="country"> <c:forEach items="${countries}" var="country"> <option value="${country.key}">${country.value}</option> </c:forEach> </select> You need a Servlet or a S...
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Android Hello-World compile error: Intellij cannot find aapt

... This did it, however, I had to select EARLY RELEASES, that showed the .4 update then when it restarted I got the 3.x which i denied. (Mac OS X 10.8.x) – Martin Marconcini May 28 '13 at 18:07 ...
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How to pass parameters in $ajax POST?

...tain network panels which displays the complete request. In network panel select XHR to see requests. This can also be done via this. $.post('superman', { 'field1': 'hello', 'field2': 'hello1' }, function (response) { alert("Success !"); } ); ...