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How to send a message to a particular client with socket.io

... ended up wasting a lot of time trying to overcome the limitations of this approach. See @az7ar's solution and this explanation for why it's better. – Daniel Que Aug 13 '14 at 1:07 ...
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phpcms v9内容页/下载页更新时间(updatetime)为空的解决方法 - 更多技术 ...

.../content/content.php public function add() { if(isset($_POST['dosubmit']) || isset($_POST['dosubmit_continue'])) { define('INDEX_HTML',true); $catid = $_POST['info']['catid'] = intval($_POST['info']['catid']); ...
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Python argparse: default value or specified value

... import argparse parser = argparse.ArgumentParser() parser.add_argument('--example', nargs='?', const=1, type=int) args = parser.parse_args() print(args) % test.py Namespace(example=None) % test.py --example Namespace(example=1) % test.py --example 2 Namespace(example=2) nargs...
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Gulps gulp.watch not triggered for new or deleted files?

... Edit: Apparently gulp.watch does work with new or deleted files now. It did not when the question was asked. The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions...
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Make elasticsearch only return certain fields?

...er. If you're searching with JSON it'll look something like this: { "_source": ["user", "message", ...], "query": ..., "size": ... } In ES 2.4 and earlier, you could also use the fields option to the search API: { "fields": ["user", "message", ...], "query": ..., "size":...
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Iterating each character in a string using Python

...imply implement an iterator that defines a next() method, and implement an __iter__ method on a class to make it iterable. (the __iter__ of course, should return an iterator object, that is, an object that defines next()) See official documentation ...
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What is the difference between char array and char pointer in C?

...sizeof(q)); // => size of char array in memory -- 6 on both // size_t strlen(const char *s) and we don't get any warnings here: printf("%zu\n", strlen(p)); // => 5 printf("%zu\n", strlen(q)); // => 5 return 0; } foo* and foo[] are different types and they are handled dif...
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Can I mix Swift with C++? Like the Objective-C .mm files

...import C++ code directly into Swift. Instead, create an Objective-C or C wrapper for C++ code. share | improve this answer | follow | ...
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How should I structure a Python package that contains Cython code

...od relies on the fact that building a .pyx file with Cython.Distutils.build_ext (at least with Cython version 0.14) always seems to create a .c file in the same directory as the source .pyx file. Here is a cut-down version of setup.py which I hope shows the essentials: from distutils.core import s...
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Determine the line of code that causes a segmentation fault?

... your current directory. And you can examine it with the command gdb your_program core_file The file contains the state of the memory when the program crashed. A core dump can be useful during the deployment of your software. Make sure your system doesn't set the core dump file size to zero. Y...