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Correct way to check if a type is Nullable [duplicate]
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@ELMOJO Why would you expect that? String isn't a nullable value type.
– Jon Skeet
Sep 11 '18 at 22:09
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Double negation (!!) in javascript - what is the purpose? [duplicate]
...alent to false in conditional statements:
false
null
undefined
The empty string "" (\ '')
The number 0
The number NaN
All other values are equivalent to true.
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Append file contents to the bottom of existing file in Bash [duplicate]
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For single string, use echo like this echo "export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_112" >> ~/.bashrc
– shellbye
Jan 3 '17 at 8:36
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Weird behavior with objects & console.log [duplicate]
...bj.bar, obj.baz);
Or JSON encode the object reference:
console.log(JSON.stringify(obj));
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Set value of textarea in jQuery
...although val does take the time to make sure the value you're setting is a string, and attr seems to do a bit more magic overall.
– enobrev
Jan 6 '09 at 6:31
63
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xkcd style graphs in MATLAB
... an annotation
annotation(fh,'textarrow',[0.4 0.55],[0.8 0.65],...
'string',sprintf('text%shere',char(10)),'headStyle','none','lineWidth',1.5,...
'fontName','Comic Sans MS','fontSize',14,'verticalAlignment','middle','horizontalAlignment','left')
%# capture with export_fig
im = export_fi...
POST data with request module on Node.JS
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Remember to JSON.stringify your data if you are sending 'content-type': 'application/json'
– Derek Soike
Mar 25 '19 at 19:10
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Add new field to every document in a MongoDB collection
...le, I would like to have new_field to be an int equal to the length of the string in test field.
– qed
Jan 17 '18 at 9:42
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Checking if a variable is not nil and not zero in ruby
...amp;.nonzero? # => NoMethodError: undefined method 'nonzero?' for "foo":String .... This is not safe to use on arbitrary objects.
– Tom Lord
Jun 6 '17 at 14:38
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How to delete a file after checking whether it exists
...r way would be to utilize the Path and Directory utility classes like so:
string file = @"C:\subfolder\test.txt";
if (Directory.Exists(Path.GetDirectoryName(file)))
{
File.Delete(file);
}
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