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Ruby Array find_first object?
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Either I don't understand your question, or Enumerable#find is the thing you were looking for.
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How to play a notification sound on websites?
...ern browsers)
<embed> (Fallback)
Codes used
MP3 for Chrome, Safari and Internet Explorer.
OGG for Firefox and Opera.
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How to determine the current shell I'm working on
...t to actual shell name in csh or tcsh
$ZSH_NAME is set on zsh
ksh has $PS3 and $PS4 set, whereas the normal Bourne shell (sh) only has $PS1 and $PS2 set. This generally seems like the hardest to distinguish - the only difference in the entire set of environment variables between sh and ksh we have i...
How to get ID of the last updated row in MySQL?
...T 1;
SELECT @update_id;
EDIT by aefxx
This technique can be further expanded to retrieve the ID of every row affected by an update statement:
SET @uids := null;
UPDATE footable
SET foo = 'bar'
WHERE fooid > 5
AND ( SELECT @uids := CONCAT_WS(',', fooid, @uids) );
SELECT @uids;
This w...
How to stop event propagation with inline onclick attribute?
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This is just wrong - inline onclick handlers don't get the event passed as an argument. Correct solution is Gareths, below.
– Benubird
Dec 9 '10 at 16:22
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UIRefreshControl without UITableViewController
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On a hunch, and based on DrummerB's inspiration, I tried simply adding a UIRefreshControl instance as a subview to my UITableView. And it magically just works!
UIRefreshControl *refreshControl = [[UIRefreshControl alloc] init];
[refresh...
How to import multiple .csv files at once?
...you have those CSVs in a single directory--your current working directory--and that all of them have the lower-case extension .csv.
If you then want to combine those data frames into a single data frame, see the solutions in other answers using things like do.call(rbind,...), dplyr::bind_rows() or ...
How to create PDF files in Python [closed]
I'm working on a project which takes some images from user and then creates a PDF file which contains all of these images.
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Split delimited strings in a column and insert as new rows [duplicate]
...parate_rows function as described by @Tif below.
It works so much better, and it allows to "unnest" multiple columns in a single statement:
> head(mydf)
geneid chrom start end strand length gene_count
ENSG00000223972.5 chr1;chr1;chr1;chr1;chr1;chr1;chr1;chr1;chr1 11869;1...
Imitating a blink tag with CSS3 animations
..., it's much simpier. You can add webkit prefix to get it working in Chrome and Safari.
– m93a
Apr 15 '13 at 18:31
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