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How to get a substring of text?
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Since you tagged it Rails, you can use truncate:
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-truncate
Example:
truncate(@text, :length => 17)
Excerpt is nice to know too, it lets you display an excerpt of a text Like so:
excerpt(...
How to remove a field completely from a MongoDB document?
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db.example.update({}, {$unset: {words:1}}, false, true);
Refer this:
http://www.mongodb.org/display/DOCS/Updating#Updating-%24unset
UPDATE:
The above link no longer covers '$unset'ing. Be sure to add {multi: true} if you want to remove this field from all of the documents in the collection;...
SVG Positioning
... SVG Elements can also be grouped by nesting svg elements:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<svg x="10">
<rect x="10" y="10" height="100" width="100" style="stroke:#ff0000;fill: #0000ff"/>
</svg>
<svg x="200"&...
Find number of months between two Dates in Ruby on Rails
....year * 12 + date2.month) - (date1.year * 12 + date1.month)
more info at http://www.ruby-forum.com/topic/72120
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Splitting templated C++ classes into .hpp/.cpp files--is it possible?
I am getting errors trying to compile a C++ template class which is split between a .hpp and .cpp file:
16 Answers
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WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
...file are required).
System:
Windows 7
wampserver2.2d-x64
This works:
http://127.0.0.1/phpmyadmin/
This one fails:
http://localhost/phpmyadmin/
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How to avoid variable substitution in Oracle SQL Developer with 'trinidad & tobago'
When I try to execute this statement in Oracle SQL Developer 2.1 a dialog box "Enter Substitution Variable" pops up asking for a replacement value for TOBAGO ,
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How do I clear the terminal screen in Haskell?
How can I clear a terminal screen after my user has selected an option from my application's menu?
8 Answers
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How do I execute code AFTER a form has loaded?
In .NET, Windows Forms have an event that fires before the Form is loaded (Form.Load), but there is no corresponding event that is fired AFTER the form has loaded. I would like to execute some logic after the form has loaded.
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erb, haml or slim: which one do you suggest? And why? [closed]
...aml:
Slim is currently about eight times faster than haml.
Slim supports HTTP streaming, while HAML doesn't.
Slim has a more natural syntax: a href="foo.html"
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