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Best practices with STDIN in Ruby?
...end
while a = gets
puts "From stdin: #{a}"
end
Note that because ARGV array is empty before first gets, Ruby won't try to interpret argument as text file from which to read (behaviour inherited from Perl).
If stdin is empty or there is no arguments, nothing is printed.
Few test cases:
$ cat ...
Is there a JSON equivalent of XQuery/XPath?
When searching for items in complex JSON arrays and hashes, like:
15 Answers
15
...
var functionName = function() {} vs function functionName() {}
...n, i) => n * i);
console.log(b.join(", ")); // 0, 2, 6
(Remember that Array#map passes the entry as the first argument, and the index as the second.)
In both cases, the body of the function is just an expression; the function's return value will automatically be the result of that expression (...
How to find memory leak in a C++ code/project?
...to free a single object. Use delete [] with square brackets to free a heap array. Don't do something like this:
char* one = new char;
delete [] one; // Wrong
char* many = new char [30];
delete many; // Wrong!
6
If the leak yet allowed - I'm usually seeking it with deleaker (check it here: htt...
What is the ultimate postal code and zip regex?
...
use these regx
$ZIPREG=array(
"US"=>"^\d{5}([\-]?\d{4})?$",
"UK"=>"^(GIR|[A-Z]\d[A-Z\d]??|[A-Z]{2}\d[A-Z\d]??)[ ]??(\d[A-Z]{2})$",
"DE"=>"\b((?:0[1-46-9]\d{3})|(?:[1-357-9]\d{4})|(?:[4][0-24-9]\d{3})|(?:[6][013-9]\d{3}))\b",
...
What is a StackOverflowError?
...y primitive types and references are kept on the stack. All the big stuff (arrays and objects) is on the heap.
– jcsahnwaldt Reinstate Monica
Jan 23 '15 at 2:25
...
pass string parameter in an onclick function
...
Great solution! If you need to pass Arrays or Objects just use JSON.stringify(obj) in the HTML and JSON.parse(event.target.getAttribute('data-arg')) in the JavaScript-layer
– leonheess
Jul 4 '19 at 8:25
...
Why aren't python nested functions called closures?
...native way, as @unutbu pointed out, would be to define each variable as an array (x = [0]) and modify it's first element (x[0] += 1). Again no error arises because x itself is not modified.
5. As suggested by @raxacoricofallapatorius, you could make x a property of counter
def initCounter ():
...
Can we define implicit conversions of enums in c#?
...doEnum.INPT] = "use";
arr[PseudoEnum.CTXT] = "as";
arr[PseudoEnum.CTXT] = "array";
arr[PseudoEnum.OUTP] = "index";
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What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...nts to break-up , she can't.
import javax.persistence.*;
import java.util.ArrayList;
import java.util.List;
@Entity
@Table(name = "BoyFriend21")
public class BoyFriend21 {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "Boy_ID")
@SequenceGenerator(name = "Boy_ID",...