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How to sum all the values in a dictionary?
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500
As you'd expect:
sum(d.values())
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Using the HTML5 “required” attribute for a group of checkboxes?
...xpression:
$('div.checkbox-group.required :checkbox:checked').length > 0
which returns true if at least one element is checked.
Based on that, you can implement your validation check.
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
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110
If the script is the same across all users, you can use a lockfile approach. If you acquire the ...
TypeScript and field initializers
...oses only.
– Jacques
Oct 13 '15 at 10:42
15
I agree with Jack and Jaques, and I think its worth r...
Phone: numeric keyboard for text input
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209
You can do <input type="text" pattern="\d*">. This will cause the numeric keyboard to ap...
How to rethrow the same exception in SQL Server
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10 Answers
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Cast Int to enum in Java
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Try MyEnum.values()[x] where x must be 0 or 1, i.e. a valid ordinal for that enum.
Note that in Java enums actually are classes (and enum values thus are objects) and thus you can't cast an int or even Integer to an enum.
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Why are flag enums usually defined with hexadecimal values
...bit shifts seems the most clear:
[Flags]
public enum MyEnum
{
None = 0,
Flag1 = 1 << 0,
Flag2 = 1 << 1,
Flag3 = 1 << 2,
Flag4 = 1 << 3,
Flag5 = 1 << 4
}
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Swipe to Delete and the “More” button (like in Mail app on iOS 7)
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20 Answers
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Using column alias in WHERE clause of MySQL query produces an error
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440
You can only use column aliases in GROUP BY, ORDER BY, or HAVING clauses.
Standard SQL doesn...