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Best implementation for hashCode method for a collection
...has only one multiplier, while non-prime has at least two. That creates an extra combination for multiplication operator to result the same hash, i.e. cause collision.
– dma_k
Feb 15 '13 at 14:08
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Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
16 A...
What size do you use for varchar(MAX) in your parameter declaration?
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cmd.Parameters.Add("@blah", OleDbType.LongVarChar, -1).Value = "very big string";
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How can I correctly prefix a word with “a” and “an”?
...efix), otherwise you may need a special case for a completely-non matching string (such input should be very rare).
You probably can't get much better than this - and it'll certainly beat most rule-based systems.
Edit: I've implemented this in JS/C#. You can try it in your browser, or download t...
How to format a number as percentage in R?
...) function.
label_percent() returns a function, so to use it, you need an extra pair of parentheses.
library(scales)
x <- c(-1, 0, 0.1, 0.555555, 1, 100)
label_percent()(x)
## [1] "-100%" "0%" "10%" "56%" "100%" "10 000%"
Customize this by adding arguments inside the first s...
Concatenating Files And Insert New Line In Between Files
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This puts the string at the end of the file; how do I get it inserted between each file?
– onassar
Nov 19 '18 at 16:37
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SQlite Getting nearest locations (with latitude and longitude)
..., mult * radius, 270);
strWhere = " WHERE "
+ COL_X + " > " + String.valueOf(p3.x) + " AND "
+ COL_X + " < " + String.valueOf(p1.x) + " AND "
+ COL_Y + " < " + String.valueOf(p2.y) + " AND "
+ COL_Y + " > " + String.valueOf(p4.y);
COL_X is the name of ...
The necessity of hiding the salt for a hash
..." is that it makes cracking more difficult, but it doesn't try to hide the extra data. If you are trying to get more security by making the salt "secret", then you really just want more bits in your encryption keys.
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More elegant way of declaring multiple variables at the same time
...a list of flag values (True, False) mapped to flag names (single-character strings). You then transform this data definition into an inverted dictionary which maps flag names to flag values. This can be done quite succinctly with a nested list comprehension, but here's a very readable implementati...
Does Dart support enumerations?
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how about this approach:
class FruitEnums {
static const String Apple = "Apple";
static const String Banana = "Banana";
}
class EnumUsageExample {
void DoSomething(){
var fruit = FruitEnums.Apple;
String message;
switch(fruit){
case(FruitEnums.Apple):
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