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Is there a faster/shorter way to initialize variables in a Rust struct?
...default. You could define a new type that implements a default value of -1 and use that instead of i64 in your struct. (I haven't tested that, but it should work).
However, I'd suggest to slightly change your data structure and use Option<i64> instead of i64. I don't know the context of your ...
EC2 instance has no public DNS
...as not the one who set it up. Some of the instances show a public dns name and others have a blank public DNS. I want to be able to connect to the instances that have a blank public DNS. I have not been able to figure out why these show up as blank.
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Where to place the 'assets' folder in Android Studio?
I am confused about the assets folder. It doesn't come auto-created in Android Studio, and almost all the forums in which this is discussed talk about Eclipse.
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How to create a cron job using Bash automatically without the interactive editor?
...n file
crontab mycron
rm mycron
Cron line explaination
* * * * * "command to be executed"
- - - - -
| | | | |
| | | | ----- Day of week (0 - 7) (Sunday=0 or 7)
| | | ------- Month (1 - 12)
| | --------- Day of month (1 - 31)
| ----------- Hour (0 - 23)
------------- Minute (0 - 59)
Source nix...
Event binding on dynamically created elements?
...ve a bit of code where I am looping through all the select boxes on a page and binding a .hover event to them to do a bit of twiddling with their width on mouse on/off .
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Scale image to fit a bounding box
...Even though this is the accepted answer, the answer below is more accurate and is currently supported in all browsers if you have the option of using a background image.
No, there is no CSS only way to do this in both directions. You could add
.fillwidth {
min-width: 100%;
height: auto;
}...
Naming convention for unique constraint
Naming conventions are important, and primary key and foreign key have commonly used and obvious conventions ( PK_Table and FK_Table_ReferencedTable , respectively). The IX_Table_Column naming for indexes is also fairly standard.
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How to match all occurrences of a regex
...r expression in Ruby? I've looked through the Regex object in the Ruby STL and searched on Google to no avail.
4 Answers
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Database design for a survey [closed]
...estions. For example: text fields for comments, multiple choice questions, and possibly questions that could contain more than one answer (i.e. check all that apply).
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Creating a new dictionary in Python
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Is there any difference between dict() and {}? Or do people just prefer one over the other?
– Matt
Mar 2 '12 at 17:13
53
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