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How do I join two lines in vi?
...u join lines as is -- without adding or removing whitespaces:
S<Switch_ID>_F<File type>
_ID<ID number>_T<date+time>_O<Original File name>.DAT
Result:
S<Switch_ID>_F<File type>_ID<ID number>_T<date+time>_O<Original File name>.DAT
With ...
What does the exclamation mark mean in a Haskell declaration?
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It's a strictness declaration. Basically, it means that it must be evaluated to what's called "weak head normal form" when the data structure value is created. Let's look at an example, so that we can see just what this means:
data Foo = Foo Int Int !Int !(Ma...
What is the meaning of #XXX in code comments?
... What's funny is that I use this on my own. XXX or #XXX basically trips the compiler and reminds me to go back on something. Generally pointer references or a previously unknown value or variable name.
– bobby
Sep 21 '09 at 5:11
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A html space is showing as %2520 instead of %20
...e next point).
if you provide a URL with the file:// protocol, you are basically stating that you have taken all precautions and encoded what needs encoding, the rest should be treated as special characters. In the above example, you should thus provide file:///c:/my%20path/my%20file.html. Aside fro...
django order_by query set, ascending and descending
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Reserved.objects.filter(client=client_id).order_by('-check_in')
Notice the - before check_in.
Django Documentation
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SSH Key - Still asking for password and passphrase
...SSH authentication and thought I set it up. Is the ssh-agent something outside of git I need to install? Thanks
– HelloWorld
Jan 13 '14 at 15:50
2
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Convert JSON String to JSON Object c#
...rked for me. Using JObject after replaced double quotes for single quote, did the trick. Thanks!!!
– Carlos Parra
Jul 23 '19 at 16:46
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Storing R.drawable IDs in XML array
I would like to store drawable resources' ID in the form of R.drawable.* inside an array using an XML values file, and then retrieve the array in my activity.
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Show data on mouseover of circle
...and the result is quite neat: d3-tip.
You can see an example here:
Basically, all you have to do is to download(index.js), include the script:
<script src="index.js"></script>
and then follow the instructions from here (same link as example)
But for your code, it would be someth...
What is the difference between pluck and collect in Rails?
...particular field. See this.
When you do:
User.first.gifts.collect(&:id)
You have objects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Ra...