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Using Java 8 to convert a list of objects into a string obtained from the toString() method
...).map(e -> e.toString()).reduce("", String::concat);
Explanation: map converts Integer stream to String stream, then its reduced as concatenation of all the elements.
Note: This is normal reduction which performs in O(n2)
for better performance use a StringBuilder or mutable reduction similar...
Convert a number range to another range, maintaining ratio
I'm trying to convert one range of numbers to another, maintaining ratio. Maths is not my strong point.
18 Answers
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List of lists into numpy array
How do I convert a simple list of lists into a numpy array? The rows are individual sublists and each row contains the elements in the sublist.
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Order of serialized fields using JSON.NET
...
{
ContractResolver = new OrderedContractResolver()
};
var json = JsonConvert.SerializeObject(obj, Formatting.Indented, settings);
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Fastest way to convert JavaScript NodeList to Array?
...y Are a-Changin'
@kangax (IE 9 preview)
Array.prototype.slice can now convert
certain host objects (e.g. NodeList’s)
to arrays — something that majority of
modern browsers have been able to do
for quite a while.
Example:
Array.prototype.slice.call(document.childNodes);
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convert string array to string
I would like to convert a string array to a single string.
9 Answers
9
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How well is Unicode supported in C++11?
... but toupper can only return one character code unit.
Next up, wstring_convert/wbuffer_convert and the standard code conversion facets.
wstring_convert is used to convert between strings in one given encoding into strings in another given encoding. There are two string types involved in this tra...
Convert a Python list with strings all to lowercase or uppercase
...n list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase?
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Importance of varchar length in MySQL table
...emporary table (group and order by operations, among other things) it will convert varchar(200) to a char(200) and performance will suffer.
– Jamie
Feb 7 '13 at 20:14
add a co...
Convert form data to JavaScript object with jQuery
How do I convert all elements of my form to a JavaScript object?
51 Answers
51
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