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How to set enum to null
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You can either use the "?" operator for a nullable type.
public Color? myColor = null;
Or use the standard practice for enums that cannot be null by having the FIRST value in the enum (aka 0) be the default value. For example ...
Where is nodejs log file?
I can't find a place where nodejs log file is stored.
Because in my node server I have "Segmentation fault", I want to look at log file for additional info...
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how to add script src inside a View when using Layout
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Depending how you want to implement it (if there was a specific location you wanted the scripts) you could implement a @section within your _Layout which would enable you to add additional scripts from the view itself, while still retaining structure. e.g.
_Layout
<!DOCTYPE html>
&l...
Hide hidden(dot) files in github atom editor
...Installed Packages" type: "Tree View". This package has a few settings you can toggle, "Hide Ignored Names" is what you're looking for.
It's a really buried setting, not sure why.
You can also add it to your config:
'tree-view':
'hideIgnoredNames': true
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How to empty/destroy a session in rails?
I can't seem to find it anywhere... How do I delete/destroy/reset/empty/clear a user's session in Rails? Not just one value but the whole thing..
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How to do a join in linq to sql with method syntax?
... SomeOtherClass = soc
});
As you can see, when it comes to joins, query syntax is usually much more readable than lambda syntax.
share
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Crontab Day of the Week syntax
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0 and 7 both stand for Sunday, you can use the one you want, so writing 0-6 or 1-7 has the same result.
Also, as suggested by @Henrik, it is possible to replace numbers by shortened name of days, such as MON, THU, etc:
0 - Sun Sunday
1 - Mon Monday...
Ruby regular expression using variable name
...var}/, 'foo' ) # => "a test foo"
Things get more interesting if var can contain regular expression meta-characters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work:
var = "Value|a|test"
str = "a test Value"
str.gs...
Should I use document.createDocumentFragment or document.createElement
...is that all the child nodes of the document fragment are inserted at the location in the DOM where you insert the document fragment and the document fragment itself is not inserted. The fragment itself continues to exist but now has no children.
This allows you to insert multiple nodes into the DOM...
Calculating how many minutes there are between two times
I have a datagridview in my application which holds start and finish times. I want to calculate the number of minutes between these two times. So far I have got:
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