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C state-machine design [closed]
I am crafting a small project in mixed C and C++. I am building one small-ish state-machine at the heart of one of my worker thread.
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Using a Single Row configuration table in SQL Server database. Bad idea?
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I have done this two ways in the past - a single row table and a key/value pair table - and there are positives and negatives to each approach.
Single Row
positive: the values are stored in the correct type
positive: it is easier to...
Capybara Ambiguity Resolution
...xample select element by id, class or other css/xpath locator so that only one element will match it.
As a note here are some locators that I usually consider useful when resolving ambiguity:
find('ul > li:first-child')
It's more useful than first('ul > li') as it will wait till first li...
What does it mean by buffer?
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Imagine that you're eating candy out of a bowl. You take one piece regularly. To prevent the bowl from running out, someone might refill the bowl before it gets empty, so that when you want to take another piece, there's candy in the bowl.
The bowl acts as a buffer between you an...
How to think in data stores instead of databases?
...arates it from RDMBS. to scale better with large dataset, App Engine has done some changes(some means lot of changes).
RDBMS VS DataStore
Structure
In database, we usually structure our data in Tables, Rows which is in Datastore it becomes Kinds and Entities.
Relations
In RDBMS, Most of the peop...
Split string to equal length substrings in Java
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Here's the regex one-liner version:
System.out.println(Arrays.toString(
"Thequickbrownfoxjumps".split("(?<=\\G.{4})")
));
\G is a zero-width assertion that matches the position where the previous match ended. If there was no previo...
jQuery date/time picker [closed]
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I've been using this one, and I LOVE it.
– Sonny
Oct 11 '10 at 18:00
3
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MySQL, update multiple tables with one query
...the row with the specified id. Some lessons are learned the hard way, this one was learned in the terrifing way.
– nheimann1
Mar 24 '15 at 15:06
1
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App.Config Transformation for projects which are not Web Projects in Visual Studio?
... intuitively right it's actually very verbose.
Here's two transforms, one using XSLT and the same one using the XML
Document Transform syntax/namespace. As with all things there's
multiple ways in XSLT to do this, but you get the general idea. XSLT
is a generalized tree transformation lan...
How can I convert immutable.Map to mutable.Map in Scala?
...ritten to take advantage of this:
val m = collection.immutable.Map(1->"one",2->"Two")
val n = collection.mutable.Map(m.toSeq: _*)
This works because a Map can also be viewed as a sequence of Pairs.
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