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Code for a simple JavaScript countdown timer?
...n a paragraph (or anywhere else on the page), just put the line:
<span id="timer"></span>
where you want the seconds to appear. Then insert the following line in your timer() function, so it looks like this:
function timer()
{
count=count-1;
if (count <= 0)
{
clearInter...
How do I delete rows in a data frame?
...
The key idea is you form a set of the rows you want to remove, and keep the complement of that set.
In R, the complement of a set is given by the '-' operator.
So, assuming the data.frame is called myData:
myData[-c(2, 4, 6), ] ...
Making a property deserialize but not serialize with json.net
...es, but stopped it from serializing them.
– Daniel Saidi
Jun 23 '16 at 8:14
7
In conjunction with...
Better way to revert to a previous SVN revision of a file?
...itted too many files to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was
...
Get Insert Statement for existing row in MySQL
...tion.
mysqldump -t -u MyUserName -pMyPassword MyDatabase MyTable --where="ID = 10"
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Turn off textarea resizing
... the textarea HTML is ):
textarea[name=foo] {
resize: none;
}
Or by id (where the textarea HTML is ):
#foo {
resize: none;
}
Taken from:
http://www.electrictoolbox.com/disable-textarea-resizing-safari-chrome/
s...
How does Windows 8 Runtime (WinRT / Windows Store apps / Windows 10 Universal App) compare to Silver
...etadata tables. You can open them with ILDASM, in fact. Note, this doesn't mean that WinRT itself is managed - it simply reuses the file format.
Then there are a number of libraries implemented in terms of that object model - defining WinRT interfaces and classes. Again, look at "Windows Metadata" ...
Are HLists nothing more than a convoluted way of writing tuples?
...t runtime then we have to follow an alternative path. Unsurprisingly, this means that methods which are sensitive to dynamic conditions have to yield optional results. Here's an example using HLists,
trait Fruit
case class Apple() extends Fruit
case class Pear() extends Fruit
type FFFF = Fruit :: ...
Why should I use var instead of a type? [duplicate]
...
When you say "by warnings" what exactly do you mean? I've usually seen it giving a hint that you may want to use var, but nothing as harsh as a warning.
There's no performance difference with var - the code is compiled to the same IL. The potential benefit is in readabil...
Get records with max value for each group of grouped SQL results
...ou want is first, then group by the columns you want the value for.
You avoid complicated subqueries that try to find the max() etc, and also the problems of returning multiple rows when there are more than one with the same maximum value (as the other answers would do)
Note: This is a mysql-only so...