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What are “named tuples” in Python?
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what is the main reason for using rcdtype not dataclasses
– Voyager
Mar 2 '19 at 3:59
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Does SQLAlchemy have an equivalent of Django's get_or_create?
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Compared to what spencer says, this solution is the good one since it prevents Race conditions (by committing/flushing the session, beware) and mimics perfectly what Django does.
– kiddouk
Mar 14 '1...
How is Docker different from a virtual machine?
...e, Docker uses AuFS. AuFS merges the different layers together and you get what you want; you just need to run it. You can keep adding more and more images (layers) and it will continue to only save the diffs. Since Docker typically builds on top of ready-made images from a registry, you rarely have...
How to get random value out of an array?
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What's the point in the whole isset part? This would fail for associative arrays anyway.
– Luke Cousins
Jan 18 '15 at 12:32
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SQL join: selecting the last records in a one-to-many relationship
...t of all customers along with their last purchase in one SELECT statement. What is the best practice? Any advice on building indexes?
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Best way to add page specific JavaScript in a Rails 3 app?
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What I like to do is include the per-view Javascript in a content_for :head block and then yield to that block in your application layout. For example
If it's pretty short then:
<% content_for :head do %>
<script...
Input with display:block is not a block, why not?
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Check out what I came up with, a solution using the relatively unknown box-sizing:border-box style from CSS 3. This allows a 'true' 100% width on any element regardless of that elements' padding and/or borders.
<!DOCTYPE html PUBL...
What's the reason for “Error:Cannot determine Java VM executable in selected JDK”?
... Structure (Welcome screen) my default Project SDK was set to the Go SDK.
What worked for me was setting this default SDK to the Java JDK.
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How to prevent Node.js from exiting while waiting for a callback?
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It is a good workaround, but not a pretty solution (what is not your fault, but node's).
– peterh - Reinstate Monica
Mar 10 '17 at 12:58
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a href link for entire div in HTML/CSS
Here is what I am trying to accomplish in HTML/CSS:
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