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Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...hen
print i
end if
end for
The first loop initialises the k extra entries to the same as the first entry in the array (this is just a convenient value that we know is already present in the array - after this step, any entries that were missing in the initial array of size N-k are sti...
How do I prevent site scraping? [closed]
...ometimes used for basic scraping)
If you find that a specific User Agent string is used by scrapers on your site, and it is not used by real browsers or legitimate spiders, you can also add it to your blacklist.
If it doesn't request assets (CSS, images), it's not a real browser.
A real browser ...
Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
...rrectly and you should see the correct behavior:
public static void main (String[] args) {
Byte b1=127;
Byte b2=127;
Short s1=127; //incorrect should use Byte
Short s2=127; //incorrect should use Byte
Short s3=128;
Short s4=128;
Integer i1=127; //incorrect should use B...
Dynamically creating keys in a JavaScript associative array
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Assuming the text string actually does have the curly braces, you could more or less treat it as JSON.. replace the = sign with a : and you've got an object to eval..
– neonski
Dec 9 '08 at 3:15
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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
... do is to cast your list down to an ArrayList. Here's an example:
List<String> list = new ArrayList<String>();
((ArrayList<String>) list).ensureCapacity(19);
Ultimately I think tsatiz is correct as once you cast to an ArrayList you're no longer coding to an interface. However, i...
How can I solve a connection pool problem between ASP.NET and SQL Server?
...d Close throws an exception:
var connection = new SqlConnection(connectionString);
connection.Open();
// some code
connection.Close();
The correct way would be this:
var connection = new SqlConnection(ConnectionString);
try
{
connection.Open();
someCall (connection);
}
...
Representing null in JSON
...son2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3)); // {myCount: 0}
conso...
PHP substring extraction. Get the string before the first '/' or the whole string
I am trying to extract a substring. I need some help with doing it in PHP.
15 Answers
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Trim trailing spaces in Xcode
... in the proper way, I'd settle for about any not-too-intrusive hack. Those extra whitespaces are really annoying.
– Alexander Gladysh
Sep 8 '09 at 12:06
add a comment
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Making a UITableView scroll when text field is selected
... above the keyboard whenever the textfields become the first responder. No extra code needed.
– Sam Ho
Sep 23 '10 at 5:03
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