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How to sum up an array of integers in C#
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Point taken. Yet, the following saves 18 chars compared to your sample: foreach (int i in arr) sum += i;
– Jørn Schou-Rode
Mar 16 '10 at 11:44
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How to vertically center divs? [duplicate]
...ng with a 'display: inline-box'. The line-height of the contents can cause extra space below the inline-box, and the result is that the child is aligned slightly above centre. I am not sure what part of the html spec causes this, but I found it to be unobvious and it took a while to work out the rea...
Django class-based view: How do I pass additional parameters to the as_view method?
...m urls.py
https://docs.djangoproject.com/en/1.7/topics/http/urls/#passing-extra-options-to-view-functions
This also works for generic views. Example:
url(r'^$', views.SectionView.as_view(), { 'pk': 'homepage', 'another_param':'?'}, name='main_page'),
In this case the parameters passed to the vi...
Add only non-whitespace changes
...l - its only special characters are ", \, \n, and ; (outside of a "-quoted string). This is why a " must always be escaped, even if it looks like it's inside a single-quoted string (which git is completely agnostic about).
This is important, eg. if you have a handy alias to execute a bash command i...
How to initialize all the elements of an array to any specific value in java
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[Incidentally, memset in C or C++ is only of any real use for arrays of char.]
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Counting DISTINCT over multiple columns
... the columns, then get the distinct count of instances of the concatenated string.
SELECT count(DISTINCT concat(DocumentId, DocumentSessionId)) FROM DocumentOutputItems;
In MySQL you can do the same thing without the concatenation step as follows:
SELECT count(DISTINCT DocumentId, DocumentSessio...
SQL query to select dates between two dates
...etween '2011/02/25' and '2011/02/27'
The date values need to be typed as strings.
To ensure future-proofing your query for SQL Server 2008 and higher, Date should be escaped because it's a reserved word in later versions.
Bear in mind that the dates without times take midnight as their defaults,...
What size do you use for varchar(MAX) in your parameter declaration?
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cmd.Parameters.Add("@blah", OleDbType.LongVarChar, -1).Value = "very big string";
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javascript set a variable if undefined
...number') ? getVariable : 0;
In this case if getVariable is not a number (string, object, whatever), setVariable is set to 0
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How to justify a single flexbox item (override justify-content)
... ( the one with display:flex ) to justify-content:space-around
Then add an extra element between the first and second item and set it to flex-grow:10 (or some other value that works with your setup)
Edit: if the items are tightly aligned it's a good idea to add flex-shrink: 10; to the extra element...