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Is it a good idea to index datetime field in mysql?
... for all cases. Yes, storing an integer is generally faster than storing a string, but what about all the DateTime functions MySQL exposes? Implementing them yourself would either have a negative effect on performance or functionality.
– Greg
Sep 26 '13 at 12:1...
Insert ellipsis (…) into HTML tag if content too wide
...ure css approach I found here: http://css-tricks.com/snippets/css/truncate-string-with-ellipsis/
.truncate {
width: 250px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
It works well.
share
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How to get the type of a variable in MATLAB?
...
for conditionals: if ( string(class(b)) == 'double' ) fprintf(1, 'b is double'); end
– khaverim
Apr 16 at 18:09
add a comme...
What is the best way to implement a “timer”? [duplicate]
...name you want to run in the application.
protected override void OnStart(string[] args)
{
// It tells in what interval the service will run each time.
Int32 timeInterval = Int32.Parse(Constants.TimeIntervalValue) * 60 * 60 * 1000;
base.OnStart(args);
...
LAST_INSERT_ID() MySQL
...t with MySQL and needed to add Allow User Variables=True to the Connection String to allow variables.
– Martin
Oct 1 '10 at 10:19
117
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How to check if the user can go back in browser history or not
...with this is that in most browsers this is considered a security violation and usually just returns undefined.
history.length
Is a property that others have suggested...
However, the length doesn't work completely because it doesn't indicate where in the history you are. Additionally, it doesn't...
Why does auto a=1; compile in C?
...up comments on this, but I can't find the exact reference right now.)
(*) String handling in B was interesting: you'd use arrays of int and pack multiple characters in each member. B was actually BCPL with different syntax.
...
Difference between := and = operators in Go
...d as an int and initialized with value 10 where as b will be declared as a string and initialized with value gopher.
Their equivalents using = would be
var a = 10
var b = "gopher"
= is assignment operator. It is used the same way you would use it in any other language.
You can omit the type whe...
Convert SVG to PNG in Python
...rt an svg to png , in Python? I am storing the svg in an instance of StringIO . Should I use the pyCairo library? How do I write that code?
...
Java : Comparable vs Comparator [duplicate]
...cts in a way that might not align with the natural ordering.
For example, Strings are generally compared alphabetically. Thus the "a".compareTo("b") would use alphabetical comparisons. If you wanted to compare Strings on length, you would need to write a custom comparator.
In short, there isn't ...