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Getting and removing the first character of a string
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See ?substring.
x <- 'hello stackoverflow'
substring(x, 1, 1)
## [1] "h"
substring(x, 2)
## [1] "ello stackoverflow"
The idea of having a pop method that both returns a value and has a side effect of updating the data stored in x is very much ...
Assigning code to a variable
... ButtonClicked = (message) => MessageBox.Show(message);
ButtonClicked("hello world!");
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...lize it, think of the 1st line as: String s = GlobalStringObjectCache.get("hello");
– Charles Goodwin
May 30 '16 at 12:07
7
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What's the difference between dynamic (C# 4) and var?
... terms of the code, condsider the following:
class Junk
{
public void Hello()
{
Console.WriteLine("Hello");
}
}
class Program
{
static void Main(String[] args)
{
var a = new Junk();
dynamic b = new Junk();
a.Hello();
b.Hello();
}
}
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Efficiency of Java “Double Brace Initialization”?
...wing:
List<String> list = new ArrayList<String>() {{
add("Hello");
add("World!");
}};
It looks like a "hidden" feature of Java, but it is just a rewrite of:
List<String> list = new ArrayList<String>() {
// Instance initialization block
{
add("Hell...
How to use java.String.format in Scala?
... correct, they're all in Java. Here's a Scala example:
val placeholder = "Hello %s, isn't %s cool?"
val formatted = placeholder.format("Ivan", "Scala")
I also have a blog post about making format like Python's % operator that might be useful.
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String.equals versus == [duplicate]
... caches strings and so something like this would return true. String a = "Hello"; String b = "Hello"; a == b is true even though one would normally expect the result to be false.
– Jon Taylor
Jul 24 '12 at 14:19
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Print a string as hex bytes?
I have this string: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21 .
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Compiling simple Hello World program on OS X via command line
I've got a simple hello world example that I'm trying to compile on OS X, named hw.cpp :
8 Answers
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Add a property to a JavaScript object using a variable as the name?
...y sort of expression (e.g. a variable) returning a value:
var obj = {
['hello']: 'World',
[x + 2]: 42,
[someObject.getId()]: someVar
}
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