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In android studio,cannot load 2 facets-unknown facet type:android and android-gradle
...ver did it and suddenly I got those same errors.
– CJ_COIMBRA
Nov 11 '15 at 1:03
6
Unable to appl...
Send an Array with an HTTP Get
... single value.
foo[]=value1&foo[]=value2&foo[]=value3
$foo = $_GET["foo"]; // [value1, value2, value3]
echo is_array($foo); // true
In case you still use foo=value1&foo=value2&foo=value3, then it'll return only the first value.
$foo = $_GET["foo"]; // value1
echo is_array($fo...
Computed / calculated / virtual / derived columns in PostgreSQL
...al, but makes makes life a bit easier).
Suppose my computation is md5(some_string_field), then I create the index as:
CREATE INDEX some_string_field_md5_index ON some_table(MD5(some_string_field));
Now, any queries that act on MD5(some_string_field) will use the index rather than computing it f...
What is a callback function?
...ant is to be able to call factorial in the following way:
factorial(really_big_number, what_to_do_with_the_result)
The second parameter, what_to_do_with_the_result, is a function you send along to factorial, in the hope that factorial will call it on its result before returning.
Yes, this means...
Javascript : Send JSON Object with Ajax?
...
With jQuery:
$.post("test.php", { json_string:JSON.stringify({name:"John", time:"2pm"}) });
Without jQuery:
var xmlhttp = new XMLHttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/json-handler");
xmlhttp.setRequestHeader("Content-Type", "appl...
Create directory if it does not exist
...me problem. You can use something like this:
$local = Get-Location;
$final_local = "C:\Processing";
if(!$local.Equals("C:\"))
{
cd "C:\";
if((Test-Path $final_local) -eq 0)
{
mkdir $final_local;
cd $final_local;
liga;
}
## If path already exists
## ...
.NET HttpClient. How to POST string value?
...
You should private static readonly HttpClient _client = new HttpClient(); instead aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong
– Sameer Alibhai
May 9 '17 at 15:05
...
How do I sort a vector of pairs based on the second element of the pair?
...custom comparator (it's an optional 3rd argument to std::sort)
struct sort_pred {
bool operator()(const std::pair<int,int> &left, const std::pair<int,int> &right) {
return left.second < right.second;
}
};
std::sort(v.begin(), v.end(), sort_pred());
If you'r...
How to find out if an item is present in a std::vector?
...ctor>
if ( std::find(vec.begin(), vec.end(), item) != vec.end() )
do_this();
else
do_that();
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What is a JavaBean exactly?
...primitive type or an instance of a class?
– kingfrito_5005
Nov 29 '16 at 15:35
8
@kingfrito_5005:...