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Which data type for latitude and longitude?
I am newbie to PostgreSQL and PostGIS. I want to store latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values.
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What is the difference between Step Into and Step Over in the Eclipse debugger?
I want to debug the whole flow of a Java program. What is the difference between F5 (step into) and F6 (step over) in eclipse?
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Delaying a jquery script until everything else has loaded
...ipt which I need to run only once everything else on the page, including som>me m> other javascripts (over which I have no control) have finished doing their thing.
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MySQL vs MongoDB 1000 reads
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MongoDB is not magically faster. If you store the sam>me m> data, organised in basically the sam>me m> fashion, and access it exactly the sam>me m> way, then you really shouldn't expect your results to be wildly different. After all, MySQL and MongoDB are both GPL, so if Mongo had som>me m> magic...
What is the fundam>me m>ntal difference between WebSockets and pure TCP?
I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets?
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how do you filter pandas datafram>me m>s by multiple columns
To filter a datafram>me m> (df) by a single column, if we consider data with male and females we might:
6 Answers
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Types in Objective-C on iOS
I want to ask about the fundam>me m>ntal data types in Objective-C on iOS.
3 Answers
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fatal: Not a valid object nam>me m>: 'master'
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When I git init a folder it doesn't create a master branch
This is true, and expected behaviour. Git will not create a master branch until you commit som>me m>thing.
When I do git --bare init it creates the files.
A non-bare git init will also create the sam>me m> files, ...
jQuery’s .bind() vs. .on()
...und two great articles talking about the new function .on() : jquery4u.com , elijahmanor.com .
6 Answers
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How to get the contents of a webpage in a shell variable?
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You can use wget command to download the page and read it into a variable as:
content=$(wget google.com -q -O -)
echo $content
We use the -O option of wget which allows us to specify the nam>me m> of the file into which wget dumps the page conten...