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HTML5 Email Validation
...your email">
<input type="submit" value="Submit">
</form>
And when the user press submit, it automatically shows an error message like:
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How to prevent gcc optimizing some statements in C?
...ile type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile is to let the compiler know that the memory access has side effects, and therefore must be preserved. In this case, the store has the side effect of causing a page fault, and you want the ...
I want to get the type of a variable at runtime
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So, strictly speaking, the "type of a variable" is always present, and can be passed around as a type parameter. For example:
val x = 5
def f[T](v: T) = v
f(x) // T is Int, the type of x
But depending on what you want to do, that won't help you. For instance, may want not to know what is ...
Sorting rows in a data table
...taView that you create from your original DataTable. Apply whatever sorts and/or filters you want on the DataView and then create a new DataTable from the DataView using the DataView.ToTable method:
DataView dv = ft.DefaultView;
dv.Sort = "occr desc";
DataTable sortedDT = dv.ToTable();
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How do you manually execute SQL commands in Ruby On Rails using NuoDB
I'm trying to manually execute SQL commands so I can access procedures in NuoDB.
4 Answers
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How to get last key in an array?
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A solution would be to use a combination of end and key (quoting) :
end() advances array 's internal pointer to the last element, and returns its value.
key() returns the index element of the current array position.
So, a portion of code such as this one should do th...
Skip certain tables with mysqldump
Is there a way to restrict certain tables from the mysqldump command?
10 Answers
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Open-sided Android stroke?
Is it possible to create an Android shape object with stroke on only certain sides?
8 Answers
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How to migrate back from initial migration in Django 1.7?
I created a new app with some models and now I noticed that some of the models are poorly thought out. As I haven't committed the code the sensible thing would be to migrate the database to last good state and redo the migration with better models. In this case the last good state is database where ...
Most efficient conversion of ResultSet to JSON?
...e following code converts a ResultSet to a JSON string using JSONArray and JSONObject .
14 Answers
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