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val-mutable versus var-immutable in Scala
...method. If the method is short, even better. If it isn't, try to reduce it by extracting other methods.
On the other hand, a mutable collection has the potential to escape, even if it doesn't. When changing code, you might then want to pass it to other methods, or return it. That's the kind of thin...
Performing a Stress Test on Web Application?
...it for a while.
Cons:
The UI is written in Swing. (ugh!)
JMeter works by parsing the response text returned by the server. So if you're looking to validate any sort of javascript behaviours, you're out of luck.
Learning curve is steep for non-programmers. If you're familiar with regular express...
What is more efficient? Using pow to square or just multiply it with itself?
...logy in my testing is correct.)
This is in response to the comment made by An Markm:
Even if a using namespace std directive was issued, if the second parameter to pow is an int, then the std::pow(double, int) overload from <cmath> will be called instead of ::pow(double, double) from <m...
Using an ORM or plain SQL? [closed]
.... They generally handle one-to-many relationships pretty elegantly as well by instantiating nested objects. I've found if you design your database with the strengths and weaknesses of the ORM in mind, it saves a lot of work in getting data in and out of the database. (You'll want to know how it hand...
Exception handling in R [closed]
...r when the value of x is negative and suggests an solution to the problem, by
establishing a restart which allows users of mid_level_ABS to control the
way in which mid_level_ABS recovers (or doesn't) from a negative_value error.
mid_level_ABS <- function(y){
abs_y <- withRestarts(low_le...
What does auto do in margin:0 auto?
...o automatically determine the left and right margins itself, which it does by setting them equally. It guarantees that the left and right margins will be set to the same size. The first parameter 0 indicates that the top and bottom margins will both be set to 0.
margin-top:0;
margin-bottom:0;
margi...
Remove duplicated rows
...
Great answer, by the way, .keep_all is for whether to keep all the columns, not to be mixed with keep in pandas.
– Jason Goal
Jul 23 '19 at 3:34
...
Do I really need to encode '&' as '&'?
.... This means you can use character entities in the attributes. Using & by itself is wrong and if not for lenient browsers and the fact that this is HTML not XHTML, would break the parsing. Just escape it as &amp; and everything would be fine.
HTML5 allows you to leave it unescaped, but only...
Git: Ignore tracked files
...
@Tyler - no, once a file is tracked by git it will always be tracked, even if that file appears in a .gitignore. My use case is something like "here's a base template of a file where you'd store your credentials in, now never commit it".
–...
jQuery Ajax POST example with PHP
...).always();
PHP (that is, form.php):
// You can access the values posted by jQuery.ajax
// through the global variable $_POST, like this:
$bar = isset($_POST['bar']) ? $_POST['bar'] : null;
Note: Always sanitize posted data, to prevent injections and other malicious code.
You could also use the...