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How to assign a Git SHA1's to a file without Git?
...uteHash
|> Array.fold (fun acc e ->
let t = System.Convert.ToString(e, 16)
if t.Length = 1 then acc + "0" + t else acc + t)
""
/// Calculates the SHA1 like git
let calcGitSHA1 (text:string) =
let s = text.Replace("\r\n","\n")
sprintf "blob %d%c%...
Accessing a Dictionary.Keys Key through a numeric index
...tem.Collections.ICollection' does not contain a definition for 'ElementAt' and no extension method 'ElementAt' accepting a first argument of type 'System.Collections.ICollection' could be found
– v.oddou
Feb 20 '15 at 6:59
...
SQL query return data from multiple tables
...
Part 1 - Joins and Unions
This answer covers:
Part 1
Joining two or more tables using an inner join (See the wikipedia entry for additional info)
How to use a union query
Left and Right Outer Joins (this stackOverflow answer is excelle...
C# using streams
... say, you just want to transfer text.
However, .NET provides classes that convert between native types and the low-level stream interface, and transfers the data to or from the stream for you. Some notable such classes are:
StreamWriter // Badly named. Should be TextWriter.
StreamReader // Badly n...
Is there a Java API that can create rich Word documents? [closed]
...ort documents that could be shared and further tweaked by end-users before converting them to PDF for final delivery and archival.
You can optionally produce documents in OpenOffice formats if you want users to use OpenOffice instead of MS-Office. In our case the users want to use MS-Office tool...
Resolve build errors due to circular dependency amongst classes
...t this is to "think like a compiler".
Imagine you are writing a compiler. And you see code like this.
// file: A.h
class A {
B _b;
};
// file: B.h
class B {
A _a;
};
// file main.cc
#include "A.h"
#include "B.h"
int main(...) {
A a;
}
When you are compiling the .cc file (remember that th...
Why is there no logical xor in JavaScript?
...se it with booleans and it will give the result as a 0 or 1 (which you can convert back to boolean, e.g. result = !!(op1 ^ op2)). But as John said, it's equivalent to result = (op1 != op2), which is clearer.
share
|...
java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
...ny supplementary characters in
utf8 columns and you need not worry about converting characters or
losing data when upgrading utf8 data from older versions of MySQL.
So to support these characters, your MySQL needs to be 5.5+ and you need to use utf8mb4 everywhere. Connection encoding needs to ...
Java default constructor
...or — can you tell me which one of the following is a default constructor and what differentiates it from any other constructor?
...
Check if two unordered lists are equal [duplicate]
...ype for an unordered collection of (hashable) things, called a set. If you convert both lists to sets, the comparison will be unordered.
set(x) == set(y)
Documentation on set
EDIT: @mdwhatcott points out that you want to check for duplicates. set ignores these, so you need a similar data struc...