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Rake just one migration
...r_migrations.rb'
=> ["YourMigrations"]
>> YourMigrations.up
=> etc... as the migration runs
>> YourMigration.down
More usefully this could be put into a rake task etc.
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im...
Difference between e.target and e.currentTarget
...K, doAction1);
menu.button2.addEventListener(MouseEvent.CLICK, doAction2);
etc...
You can simply do:
menu.addEventListener(MouseEvent.CLICK, doAction);
And trigger a different action within doAction(event) depending on the event.target (using it's name property, etc...)
...
Is the 'type' attribute necessary for tags?
...ic event scripts in HTML4 (like in onload, onclick, onmouseover attributes etc.) you have to define <meta http-equiv="content-script-type" content="text/javascript"> in <head> or configure your server to send Content-Script-Type: text/javascript in HTTP headers.
– T...
Is floating-point math consistent in C#? Can it be?
...s it easier to find, easier to contribute to, easier to put on your resume etc. Also, a few source-code tips (feel free to ignore): Use const instead of static for constants, so the compiler can optimize them; prefer member functions to static functions (so we can call, ex. myDouble.LeadingZeros()...
Express-js can't GET my static files, why?
...he "public" directory in the application directory.
// GET /style.css etc
app.use(express.static(__dirname + '/public'));
// Mount the middleware at "/static" to serve static content only when their request path is prefixed with "/static".
// GET /static/style.css etc.
app.use('/s...
How to add a delay for a 2 or 3 seconds [closed]
...-------------------------------------------------------->
(UI, CONSOLE ETC.) | |
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OTHER THREAD ----- ADD A DELAY (Thread.Sleep) ------>
For other scenarios (e.g. starting o...
OS specific instructions in CMAKE: How to?
...ot on Linux
endif()
CMake boolean logic docs
CMake platform names, etc.
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Prevent text selection after double click
...nt.detail === 2) to really prevent ONLY double-click (and not triple-click etc.)
– Robin Stewart
Feb 26 at 4:17
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Generating v5 UUID. What is name and namespace?
...e a filename within a logical directory, object-id within an object-store, etcetera.
While this works well for a moderately large number of namespaces and keys, it eventually runs out of steam if you are aiming for a very large numbers of keys that are unique with very high probability. The Wikiped...
SQL query to group by day
...ay AS DAY(Created) PERSISTED
and now you could easily group by, order by etc. by day, month or year of the sale:
SELECT SaleDay, SUM(Amount)
FROM dbo.Sales
GROUP BY SaleDay
Those calculated fields will always be kept up to date (when your "Created" date changes), they're part of your table, the...