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When should the xlsm or xlsb formats be used?
...memory,
the file format has no effect on application/calculation speed
Converters – both formats will have identical converter support
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How to return dictionary keys as a list in Python?
...
Try list(newdict.keys()).
This will convert the dict_keys object to a list.
On the other hand, you should ask yourself whether or not it matters. The Pythonic way to code is to assume duck typing (if it looks like a duck and it quacks like a duck, it's a duck)...
Use HTML5 to resize an image before upload
...om event. Here is the function to create the blob:
/* Utility function to convert a canvas to a BLOB */
var dataURLToBlob = function(dataURL) {
var BASE64_MARKER = ';base64,';
if (dataURL.indexOf(BASE64_MARKER) == -1) {
var parts = dataURL.split(',');
var contentType = parts...
How to check if all of the following items are in a list?
... and more clearly-named method, set.issubset. Note that you don't need to convert the argument to a set; it'll do that for you if needed.
set(['a', 'b']).issubset(['a', 'b', 'c'])
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What are inline namespaces for?
...me the next standard, and the STL vendor just repeats the procedure again, introducing a new namespace for std::vector with emplace_back support (which requires C++11) and inlining that one iff __cplusplus == 201103L.
OK, so why do I need a new language feature for this? I can already do the follow...
Last iteration of enhanced for loop in java
...lly want concatenation here, and StringBuilder has a perfectly good append(int) overload.)
int[] array = {1, 2, 3...};
StringBuilder builder = new StringBuilder();
for (int i : array) {
if (builder.length() != 0) {
builder.append(",");
}
builder.append(i);
}
The nice thing ab...
Difference in make_shared and normal shared_ptr in C++
...ad a chance to clean it up. The core of the problem here is that the raw pointer didn't get passed to the std::shared_ptr constructor immediately.
One way to fix this is to do them on separate lines so that this arbitary ordering cannot occur.
auto lhs = std::shared_ptr<Lhs>(new Lhs("foo"));...
Why is an int in OCaml only 31 bits?
...e 32nd bit is used for garbage collection. But why is it that way only for ints and not for the other basic types?
5 Answer...
What's the best way to refactor a method that has too many (6+) parameters?
... the constructors.
class C
{
public string S { get; set; }
public int I { get; set; }
}
new C { S = "hi", I = 3 };
However, you lose immutability, and you lose the ability to ensure that the required values are set before using the object at compile time.
Builder Pattern.
Think abo...
Getting Http Status code number (200, 301, 404, etc.) from HttpWebRequest and HttpWebResponse
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Console.Write((int)response.StatusCode);
HttpStatusCode (the type of response.StatusCode) is an enumeration where the values of the members match the HTTP status codes, e.g.
public enum HttpStatusCode
{
...
Moved = 301,
OK = ...