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Is there a better alternative than this to 'switch on type'?
...ing on types is supported - see Zachary Yates's answer below). In order to do this without a large if/else if/else statement, you'll need to work with a different structure. I wrote a blog post awhile back detailing how to build a TypeSwitch structure.
https://docs.microsoft.com/archive/blogs/jared...
Is it possible to perform a 'grep search' in all the branches of a Git project?
....
Another form would be:
git rev-list --all | (
while read revision; do
git grep -F 'yourWord' $revision
done
)
You can find even more example in this article:
I tried the above on one project large enough that git complained about the argument size, so if you run into this p...
Which UUID version to use?
...'s not recommended to create these.
Version 4: These are generated from random (or pseudo-random) numbers. If you just need to generate a UUID, this is probably what you want.
If you need to always generate the same UUID from a given name, you want a version 3 or version 5.
Version 3: This gener...
Interview questions: WPF Developer [closed]
...oned basic knowledge of XAML yet. Knowing what XAML is, and the ability to do some basic editing using XAML rather than a graphical design tool. Mid-level developers should be able to knock up form / graphic prototypes using a tool like XAMLPad.
...
Stacking DIVs on top of each other?
... edited Jun 6 '19 at 20:39
dota2pro
4,22533 gold badges1818 silver badges4444 bronze badges
answered Dec 15 '09 at 19:14
...
Case objects vs Enumerations in Scala
... val GBP = Value("GBP")
val EUR = Value("EUR") //etc.
}
Then you can do:
val ccy = Currency.withName("EUR")
This is useful when wishing to persist enumerations (for example, to a database) or create them from data residing in files. However, I find in general that enumerations are a bit clums...
How to select rows that have current day's timestamp?
...
If you want an index to be used and the query not to do a table scan:
WHERE timestamp >= CURDATE()
AND timestamp < CURDATE() + INTERVAL 1 DAY
To show the difference that this makes on the actual execution plans, we'll test with an SQL-Fiddle (an extremely helpful s...
Easy idiomatic way to define Ordering for a simple case class
...
The case class A suggested in the answer doesn't seem to compile under scala 2.10. Am I missing something?
– Doron Yaacoby
Apr 29 '14 at 13:43
3
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Redirecting stdout to “nothing” in python
...
Cross-platform:
import os
import sys
f = open(os.devnull, 'w')
sys.stdout = f
On Windows:
f = open('nul', 'w')
sys.stdout = f
On Linux:
f = open('/dev/null', 'w')
sys.stdout = f
share
|
...
How can I check if a string is null or empty in PowerShell?
...
I like this way more as it is obvious what it does regardless of your Powerhsell knowledge -which would make sense for non-Powershell programmers.
– pencilCake
Dec 10 '12 at 6:07
...