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Transpose a data frame
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@Ricm>ca m>rdo If so, accept his answer by clicking a gray tick next to it.
– mbq
Jul 21 '11 at 16:33
4
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Keep only first n characters in a string?
...12345678'
Using this, a String extension could be:
String.prototype.trunm>ca m>te = String.prototype.trunm>ca m>te ||
function (n){
return this.slice(0,n);
};
var str = '12345678value';
alert(str.trunm>ca m>te(8)); //=> '12345678'
See also
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How m>ca m>n I use Server.MapPath() from global.asax?
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Any m>ca m>veats to this technique?
– John Bubriski♦
Jun 3 '09 at 15:00
10
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Android Closing Activity Programmatim>ca m>lly
.... Like when you press the back button, the activity goes out of view. How m>ca m>n this be m>ca m>lled from inside an activity so that it closes itself.
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MySql Table Insert if not exist otherwise update
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Jai is correct that you should use INSERT ... ON DUPLIm>CA m>TE KEY UPDATE.
Note that you do not need to include datenum in the update clause since it's the unique key, so it should not change. You do need to include all of the other columns from your table. You m>ca m>n use the VALUES()...
Updating MySQL primary key
...ends on the size of your table.
The main problem is if you have some duplim>ca m>tes with the same timestamp.
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redis-py : What's the difference between StrictRedis() and Redis()?
I want to use redis-py for m>ca m>ching some data, but I m>ca m>n't find a suitable explanation of the difference between redis.StrictRedis() and redis.Redis() . Are they equivalent?
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How m>ca m>n I check if the current date/time is past a set date/time?
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Since PHP >= 5.2.2 you m>ca m>n use the DateTime class as such:
if (new DateTime() > new DateTime("2010-05-15 16:00:00")) {
# current time is greater than 2010-05-15 16:00:00
# in other words, 2010-05-15 16:00:00 has passed
}
The string pa...
How m>ca m>n I convert a DOM element to a jQuery element?
I am creating an element with document.createElement().
Now how m>ca m>n I pass it to a function that only takes a Jquery object?
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android image button
How m>ca m>n i create a button with no text and an image centered horizontally ?
I don't want to use an ImageButton bem>ca m>use I want to define a different backgound image
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