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Simple calculations for working with lat/lon and km distance?

...ity for almost any database out there. If you have implemented geospatial indexing correctly your searches would be way faster than the approach you are using share | improve this answer |...
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Way to ng-repeat defined number of times instead of repeating over array?

... function needed): <li ng-repeat="x in [].constructor(number) track by $index"> <span>{{ $index+1 }}</span> </li> $scope.number = 5; This was not possible at the time the question was first asked. Credit to @Nikhil Nambiar from his answer below for this update Origina...
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Best PHP IDE for Mac? (Preferably free!) [closed]

...wdown on Mac IDE's for PHP NetBeans Free! Plus, the best functionality of all offerings. Includes inline database connections, code completion, syntax checking, color coding, split views etc. Downside: It's a memory hog on the Mac. Be prepared to allow half a gig of memory then you'll need to shu...
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pandas GroupBy columns with NaN (missing) values

...ell. A less hacky solve is to use pd.drop_duplicates() to create a unique index of value combinations each with their own ID, and then group on that id. It is more verbose but does get the job done: def safe_groupby(df, group_cols, agg_dict): # set name of group col to unique value group_i...
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How does RewriteBase work in .htaccess

... want to clear up some details on htaccess.. does a ReWriteBase set it for all rules in the htaccess following what its declaration? is there a way to unset it, can it be reset? – Damon Apr 25 '13 at 15:32 ...
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How to include route handlers in multiple files in Express?

...e I was able to dynamically include all routes in a sub directory. routes/index.js var fs = require('fs'); module.exports = function(app){ fs.readdirSync(__dirname).forEach(function(file) { if (file == "index.js") return; var name = file.substr(0, file.indexOf('.')); r...
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discuz插件开发新手入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...scuz后台没有设计新插件! 解决方案:在config\config_global.php 最下面添加 $_config['plugindeveloper'] = 2; 刷新后台应用即可 问题2.怎么知道discuz在那些点设置了钩子呢? 设置完成1后 工具->清理缓存 然后刷新下页面就出现好多 类似str...
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In Python, how do I determine if an object is iterable?

...(o) will construct an iterator that tries to fetch items from o by integer index, starting at index 0. The iterator will catch any IndexError (but no other errors) that is raised and then raises StopIteration itself. In the most general sense, there's no way to check whether the iterator returned by...
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What are “named tuples” in Python?

...) pt1 = Point(1.0, 5.0) pt2 = Point(2.5, 1.5) from math import sqrt # use index referencing line_length = sqrt((pt1[0]-pt2[0])**2 + (pt1[1]-pt2[1])**2) # use tuple unpacking x1, y1 = pt1 Thus, you should use named tuples instead of tuples anywhere you think object notation will make your code mo...
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What is the difference between client-side and server-side programming?

...php echo 42; ?>; alert(baz); </script> Step 1, PHP executes all code between <?php ?> tags. The result is this: <script type="text/javascript"> var foo = 'bar'; var baz = 42; alert(baz); </script> The file_put_contents call did not result in anything,...