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What is the easiest way to remove the first character from a string?
...23,987,43"
I'm always looking for the fastest and most readable way of doing things:
require 'benchmark'
N = 1_000_000
puts RUBY_VERSION
STR = "[12,23,987,43"
Benchmark.bm(7) do |b|
b.report('[0]') { N.times { "[12,23,987,43"[0] = '' } }
b.report('sub') { N.times { "[12,23,987,43".sub(/...
Understanding the difference between Object.create() and new SomeFunction()
...ect, where as in the new Function() form the declared properties/functions do not form the prototype.
Yes, Object.create builds an object that inherits directly from the one passed as its first argument.
With constructor functions, the newly created object inherits from the constructor's prototyp...
How do I list the functions defined in my shell?
...pply one or more function names to the declare -F command. IOW, declare -F does not supply filenames/line#s even when extdebug is enabled, which is not clear from the documentation, nor is it particularly intuitive, IMO.
– Ron Burk
May 16 '17 at 8:35
...
Assigning variables with dynamic names in Java
...
This is not how you do things in Java. There are no dynamic variables in Java. Java variables have to be declared in the source code1.
Depending on what you are trying to achieve, you should use an array, a List or a Map; e.g.
int n[] = new...
Elements order in a “for (… in …)” loop
Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
...
How to find indices of all occurrences of one string in another in JavaScript?
...e back to where you started. As pointed out by Wrikken in the comments, to do this for the general case with regular expressions you would need to escape special regex characters, at which point I think the regex solution becomes more of a headache than it's worth.
function getIndicesOf(searchS...
How do I make this file.sh executable via double click?
...
Without this, Terminal will refuse to execute it.
Note that the script does not have to begin with a #! prefix in this specific scenario, because Terminal specifically arranges to execute it with your default shell. (Of course, you can add a #! line if you want to customize which shell is used o...
Scala: What is a TypeTag and how do I use it?
...they somehow replaced Manifests. Information on the Internet is scarce and doesn't provide me with a good sense of the subject.
...
How do I create a right click context menu in Java Swing?
...enuItem("Click Me!");
add(anItem);
}
}
Then, all you need to do is add a custom MouseListener to the components you would like the menu to popup for.
class PopClickListener extends MouseAdapter {
public void mousePressed(MouseEvent e) {
if (e.isPopupTrigger())
...
How can I handle time zones in my webapp?
...se that as the current timezone. That said, there should be a timezone dropdown next to the "time input" box, which defaults to the device's current timezone, so the user can change it if needed.
The majority of your users probably will not change timezones much, or at all. For the most part, the s...