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Determining memory usage of objects? [duplicate]
...You could try the lsos() function from this question:
R> a <- rnorm(100)
R> b <- LETTERS
R> lsos()
Type Size Rows Columns
b character 1496 26 NA
a numeric 840 100 NA
R>
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Insert ellipsis (…) into HTML tag if content too wide
...iline {
white-space: normal;
}
<div class="ellipsis" style="width: 100px; border: 1px solid black;">Lorem ipsum dolor sit amet, consectetur adipisicing elit</div>
<div class="ellipsis multiline" style="width: 100px; height: 40px; border: 1px solid black; margin-bottom: 100px">...
How does one output bold text in Bash?
...same as inserting the escapes, but it would work in other terminals (not VT100).
– JamesRat
May 27 '10 at 21:00
That's...
Associative arrays in Shell scripts
...6s
user 0m0.228s
sys 0m0.530s
$ time ./driver.sh irfan 100 5
real 0m10.633s
user 0m4.366s
sys 0m7.127s
$ time ./driver.sh brian 100 5
real 0m1.682s
user 0m0.546s
sys 0m1.082s
$ time ./driver.sh jerry 100 5
real 0m9.3...
an htop-like tool to display disk activity in linux [closed]
...?DiskName Busy Read WriteKB|0 |25 |50 |75 100| ?
?sda 0% 0.0 127.9|> | ?
?sda1 1% 0.0 127....
How can I generate random alphanumeric strings?
...e CryptoRNGDemo
{
class Program
{
const int REPETITIONS = 1000000;
const int KEY_SIZE = 32;
static void Main(string[] args)
{
Console.WriteLine("Original BIASED implementation");
PerformTest(REPETITIONS, KEY_SIZE, KeyGenerator.GetUniq...
How to initialize log4j properly?
...leAppender
log4j.appender.R.File=example.log
log4j.appender.R.MaxFileSize=100KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
...
background-size in shorthand background property (CSS3)
...kground:url('equote.png'),url('equote.png');
background-size:400px 100px,50px 50px;
}
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JavaScript displaying a float to 2 decimal places
...u'd like to preserve it as a number type you can use:
Math.round(number * 100) / 100
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What database does Google use?
...s them as tablets. A tablet is around 200 MB, and each machine saves about 100 tablets. This setup allows tablets from a single table to be spread among many servers. It also allows for fine-grained load balancing. If one table is receiving many queries, it can shed other tablets or move the busy ta...