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What is the difference between save and export in Docker?
...h images.
An image has to be considered as 'dead' or immutable, starting 0 or 1000 containers from it won't alter a single byte. That's why I made a comparison with a system install ISO earlier. It's maybe even closer to a live-CD.
A container "boots" the image and adds an additional layer on top ...
How to cast/convert pointer to reference in C++
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answered Apr 16 '12 at 10:53
David HeffernanDavid Heffernan
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Regex lookahead for 'not followed by' in grep
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answered Feb 8 '12 at 18:08
Jonathan LefflerJonathan Leffler
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NERDTree reload new files
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answered Jan 9 '12 at 20:06
romainlromainl
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How do I make sure every glyph has the same width?
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208
Since 3.1.1, you could use the icon-fixed-width class instead of having to edit the CSS.
http:...
How to set the text color of TextView in code?
...set a text color by the textColor attribute, like android:textColor="#FF0000" . But how do I change it by coding?
35 Ans...
What is the right way to override a setter method in Ruby on Rails?
...========================================================
Update: July 19, 2017
Now the Rails documentation is also suggesting to use super like this:
class Model < ActiveRecord::Base
def attribute_name=(value)
# custom actions
###
super(value)
end
end
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Psql list all tables
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204
If you wish to list all tables, you must use:
\dt *.*
to indicate that you want all tables i...
How to align a div to the top of its parent but keeping its inline-block behaviour?
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380
Try the vertical-align CSS property.
#box1 {
width: 50px;
height: 50px;
background:...
Copy values from one column to another in the same table
...t of rows:
UPDATE `products` SET `in_stock` = true WHERE `supplier_id` = 10
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