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DynamoDB vs MongoDB NoSQL [closed]
... has more features, it doesn't. Mongo has a better query language, you can index within a structure, there's lots of little things. The superiority of Dynamo is in what the OP stated in his comment: it's easy. You don't have to take care of any servers. When you start to set up a Mongo sharded solut...
Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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How can I return the current action in an ASP.NET MVC view?
...ext.Controller.GetType().Name , but how do I get the current action (e.g. Index , Show etc.)?
11 Answers
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What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
... datatype of NUMBER (no precision). When you try to create Function Based Indexes to support spatial queries it'll gag otherwise.
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Remove not alphanumeric characters from string
...; i < json_string.length; i++) {
let char = json_string[i]
let index = alpha_numeric.indexOf(char)
if (index > -1) {
filterd_string += alpha_numeric[index]
}
}
return filterd_string
}
const input = "\\test\red\bob\fred\new"
console.log(alpha_numeric_filter(input)...
Swift: Pass array by reference?
...n, Reflectable, ... {
var array : Array<T>
// ...
subscript (index: Int) -> T {
get { return array[index] }
set(newValue) { array[index] = newValue }
}
}
Use the BoxedArray anywhere you'd use an Array. Assigning of a BoxedArray will be by reference, it is a class, and ...
PostgreSQL - max number of parameters in “IN” clause?
... worry about overloading the query plan optimizer or getting plans without index usage, since it will transform the query to use = ANY({...}::integer[]) where it can leverage indices as expected:
-- prepare statement, runs instantaneous:
PREPARE hugeplan (integer, integer, integer, ...) AS
SELECT *...
PHP session lost after redirect
...url' inside the redirecting header !
header("location: http://example.com/index.php")
nullified the session cookies
header("location: index.php")
worked like a charm !
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Html.ActionLink as a button or an image, not a link
...lass to the htmlAttributes object.
<%= Html.ActionLink("Button Name", "Index", null, new { @class="classname" }) %>
and then create a class in your stylesheet
a.classname
{
background: url(../Images/image.gif) no-repeat top left;
display: block;
width: 150px;
height: 150...
Python Dictionary Comprehension
...1)
x_s = range(1, 11)
# x_s = range(11, 1, -1) # Also works
d = dict([(i_s[index], x_s[index], ) for index in range(len(i_s))])
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