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Getting a map() to return a list in Python 3.x
...t for using 3.1's map would be lazy evaluation when iterating on a complex function, large data sets, or streams.
– Andrew Keeton
Aug 20 '09 at 0:45
19
...
Play a Sound with Python [duplicate]
...all these malfunctioning sound libraries tbh. Substituting xdg-open for mpg123 will give afplay functionality on Linux
– Louis Maddox
Jul 9 '14 at 12:00
...
How to escape single quotes within single quoted strings
...aped single quote and reopens the string.
I often whip up a "quotify" function in my Perl scripts to do this for me. The steps would be:
s/'/'\\''/g # Handle each embedded quote
$_ = qq['$_']; # Surround result with single quotes.
This pretty much takes care of all cases.
Life gets more...
Number of lines in a file in Java
...s takes 0.35 seconds, versus 2.40 seconds when using readLines(). Just for fun, linux' wc -l command takes 0.15 seconds.
public static int countLinesOld(String filename) throws IOException {
InputStream is = new BufferedInputStream(new FileInputStream(filename));
try {
byte[] c = ne...
How do I pre-populate a jQuery Datepicker textbox with today's date?
...k and doesn't make jQuery search the DOM twice.
– abc123
Aug 1 '13 at 20:36
1
Great, accepted ans...
How to prevent logback from outputting its own status at the start of every log when using a layout
...t;
<appender-ref ref="STDOUT" />
</root>
<logger name="fun.n.games" level="DEBUG" />
This is running with the following entry in the pom.xml
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</art...
Underscore: sortBy() based on multiple attributes
...r first property, like this:
var sortedArray = _(patients).chain().sortBy(function(patient) {
return patient[0].name;
}).sortBy(function(patient) {
return patient[0].roomNumber;
}).value();
When the second sortBy finds that John and Lisa have the same room number it will keep them in the ...
How to format a java.sql Timestamp for displaying?
...ERMAN);
Timestamp oldfashionedTimestamp = new Timestamp(1_567_890_123_456L);
ZonedDateTime dateTime = oldfashionedTimestamp.toInstant()
.atZone(ZoneId.systemDefault());
String desiredFormat = dateTime.format(formatter);
System.out.println(desiredFormat);
O...
Excel VBA App stops spontaneously with message “Code execution has been halted”
... the last 4-5 days. This worked perfectly.
– demouser123
Aug 4 '14 at 9:46
26
Does anyone know wh...
How to split data into training/testing sets using sample function
...row(mtcars))
## set the seed to make your partition reproducible
set.seed(123)
train_ind <- sample(seq_len(nrow(mtcars)), size = smp_size)
train <- mtcars[train_ind, ]
test <- mtcars[-train_ind, ]
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