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How to copy a collection from one database to another in MongoDB
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At the moment there is no command in MongoDB that would do this. Please note the JIRA ticket with related feature request.
You could do something like:
db.<collection_name>.find().forEach(function(d){ db.getSiblingDB('<new_...
Best timestamp format for CSV/Excel?
I'm writing a CSV file. I need to write timestamps that are accurate at least to the second, and preferably to the millisecond. What's the best format for timestamps in a CSV file such that they can be parsed accurately and unambiguously by Excel with minimal user intervention?
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Moment.js transform to date object
Using Moment.js I can't transform a correct moment object to a date object with timezones. I can't get the correct date.
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Converting SVG to PNG using C# [closed]
...es to PNG using C#, without having to write too much code. Can anyone recommend a library or example code for doing this?
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Rotating and spacing axis labels in ggplot2
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Change the last line to
q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge ...
Prevent strace from abbreviating arguments?
... use strace to find out what commands a program executes using execve . Some of the arguments in these commands are quite long, and strace is abbreviating the arguments to execve (I see "..." after about 30 characters), preventing me from getting any useful information. How can I get the full tex...
How to get Twitter-Bootstrap navigation to show active link?
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Just made an answer on the very same question here
Twitter Bootstrap Pills with Rails 3.2.2
<ul class="nav">
<li class="<%= 'active' if params[:controller] == 'controller1' %>"> <a href="/link">Link</a> </li>
<li cl...
Suppress warning messages using mysql from within Terminal, but password written in bash script
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If your MySQL client/server version is a 5.6.x a way to avoid the WARNING message are using the mysql_config_editor tools:
mysql_config_editor set --login-path=local --host=localhost --user=username --password
Then you can use in your shell script:
mysql --login-path=local -e "statement"
Ins...
Computed read-only property vs function in Swift
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It seems to me that it's mostly a matter of style: I strongly prefer using properties for just that: properties; meaning simple values that you can get and/or set. I use functions (or methods) when actual work is being done. Maybe someth...
MFC Grid control 2.27 - C/C++ - 清泛网 - 专注IT技能提升
...his grid is the work of thousands of hours of squinting at pixels, hunting memory leaks, adding new features, fixing new bugs and beating the code by force of will into a form that is as feature rich and useable as something of this form can be. Dozens of developers from all over the world have cont...