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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...uto-load the driver class. So why do we have to manually do Class.forName("etc.driver") ?
– Pacerier
Aug 28 '14 at 22:52
...
How do I choose between Tesseract and OpenCV? [closed]
... image inputs (a single word, line, paragraph, page, limited dictionaries, etc.).
OpenCV, on the other hand, is a computer vision library that includes features that let you perform some feature extraction and data classification. You can create a simple letter segmenter and classifier that performs...
What's the equivalent of use-commit-times for git?
... simple --with-timestamps option for git checkout and friends (clone, pull etc), at the user's discretion.
Both Bazaar and Mercurial stores metadata. Users can apply them or not when checking out. But in git, since original timestamps are not even available in the repo, there is no such option.
So...
Script entire database SQL-Server
...p level script, certainly not a script to create all tables, procs, udfs, .etc.
7 Answers
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Pass a data.frame column name to a function
...1(df, "B")
fun1(df, c("B","A"))
There's no need to use substitute, eval, etc.
You can even pass the desired function as a parameter:
fun1 <- function(x, column, fn) {
fn(x[,column])
}
fun1(df, "B", max)
Alternatively, using [[ also works for selecting a single column at a time:
df <- ...
Converting a string to a date in JavaScript
...parts[1]); JavaScript counts months from 0:
// January - 0, February - 1, etc.
var mydate = new Date(parts[0], parts[1] - 1, parts[2]);
console.log(mydate.toDateString());
share
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improve ...
What is WebKit and how is it related to CSS?
...ions relating to CSS, jQuery, layouts, cross-browers compatibility issues, etc...
14 Answers
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What should be the values of GOPATH and GOROOT?
...ct trees (e.g. git) with non-go files - e.g. images, scripts, build files, etc?
– Serge Merzliakov
May 17 '19 at 1:44
...
gitosis vs gitolite? [closed]
...east that is GitLab+Gitolite, if you don't need fine control over projects etc, this is way to go.
– Andrew T Finnell
Jun 4 '12 at 21:21
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Real-world examples of recursion [closed]
... system. Recursively finding files, deleting files, creating directories, etc.
Here is a Java implementation that recursively prints out the content of a directory and its sub-directories.
import java.io.File;
public class DirectoryContentAnalyserOne implements DirectoryContentAnalyser {
pr...