To deep copy a IList in C# and VB.NET you can use the snippet.
public static IList<T> Clone<T>(IList<T> listToClone) where T : ICloneable
{
return listToClone.Select(item => (T)item.Clone()).ToList();
}
Public Shared Function Clone(Of T As ICloneable)(listToClone As IList(Of T)) As IList(Of T) Return listToClone.[Select](Function(item) DirectCast(item.Clone(), T)).ToList() End Function
To check if an array contains a value in Javascript you can use the snippet below.
Array.prototype.inArray = function (inputValue) {
var counter;
for (counter=0; counter < this.length; counter++) {
if (this[counter] === inputValue) {
return true;
}
}
return false;
};
To combine two lists using Python you can use the following snippet.
create a new list
list = list_1 + list_2 #creates a new list
extend a list
list_1.extend(list_2) #extends list 1
To empty an array in Javascript you can use the following methods.
myArray = [];
This code will set the variable A to a new empty array (take care if you have references to the “old” array).
or
myArray.length = 0
This will clear the existing array by setting its length to 0.
or
myArray.splice(0,myArray.length)
Working, but not recommended for this task. see Array.prototype.splice()
or
while(myArray.length > 0) {
myArray.pop();
}
Fastest solution, without breaking references.
You can declare an array in Java in 3 different ways.
int[] myArr = new int[5];
int[] myArr = {1,2,3,4,5};
int[] myArr = new int[]{1,2,3,4,5};
To Shuffle a List in C# and VB.NET you can use the snippet below.
public static IList<T> ShuffleIList<T>(IList<T> inputList)
{
var cryptoServiceProvider = new RNGCryptoServiceProvider();
var count = inputList.Count;
while (count > 1)
{
var bytes = new byte[1];
do cryptoServiceProvider.GetBytes(bytes);
while (!(bytes[0] < count * (Byte.MaxValue / count)));
var index = (bytes[0] % count);
count--;
var input = inputList[index];
inputList[index] = inputList[count];
inputList[count] = input;
}
return inputList;
}
Public Shared Function ShuffleIList(Of T)(inputList As IList(Of T)) As IList(Of T)
Dim cryptoServiceProvider = New RNGCryptoServiceProvider()
Dim count = inputList.Count
While count > 1
Dim bytes = New Byte(0) {}
Do
cryptoServiceProvider.GetBytes(bytes)
Loop While Not (bytes(0) < count * ([Byte].MaxValue / count))
Dim index = (bytes(0) Mod count)
count -= 1
Dim input = inputList(index)
inputList(index) = inputList(count)
inputList(count) = input
End While
Return inputList
End Function
To convert Stream to ByteArray in C# and VB.NET you can use the following snippet.
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public static byte[] StreamToByteArray(Stream inputStream) { byte[] bytes = new byte[16384]; using (MemoryStream memoryStream = new MemoryStream()) { int count; while ((count = inputStream.Read(bytes, 0, bytes.Length)) > 0) { memoryStream.Write(bytes, 0, count); } return memoryStream.ToArray(); } } |
|
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Public Function StreamToByteArray(inputStream As Stream) As Byte() Dim bytes = New Byte(16383) {} Using memoryStream = New MemoryStream() Dim count As Integer While ((count = inputStream.Read(bytes, 0, bytes.Length)) > 0) memoryStream.Write(bytes, 0, count) End While Return memoryStream.ToArray() End Using End Function |
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To Bubblesort ILists in C# and VB.NET you can use the follwing snippet.
public static IList Sort(IList inputArray)
{
var counter = inputArray.Count - 1;
for (var i = 0; i < counter; i++)
{
for (var index = counter; index > i; index--)
{
if (((IComparable)inputArray[index - 1]).CompareTo(inputArray[index]) <= 0) continue;
var temp = inputArray[index - 1];
inputArray[index - 1] = inputArray[index];
inputArray[index] = temp;
}
}
return inputArray;
}
Public Shared Function Sort(inputArray As IList) As IList Dim counter = inputArray.Count - 1 For i As var = 0 To counter - 1 For index As var = counter To i + 1 Step -1 If DirectCast(inputArray(index - 1), IComparable).CompareTo(inputArray(index)) <= 0 Then Continue For End If Dim temp = inputArray(index - 1) inputArray(index - 1) = inputArray(index) inputArray(index) = temp Next Next Return inputArray End Function
To join a array to string in Python you can use the following snippet.
def JoinArray(input, delimiter, appendToEnd): delimiter = ';' joinedString = delimiter.join(input) if appendToEnd: joinedString = joinedString + delimiter return joinedString else: return joinedString list = ['This', 'is', 'a', 'Test','!'] print JoinArray(list, ';', False)
To join a array to string in Java you can use the following snippet.
public static String JoinArraylist(List<String> input, String delimiter, Boolean appendToEnd){
Iterator<String> iteratorString = input.iterator();
StringBuilder stringBuilder = new StringBuilder();
for (;;) {
stringBuilder.append(iteratorString.next());
if (!iteratorString.hasNext()){
break;
}
stringBuilder.append(delimiter);
}
if(appendToEnd){
stringBuilder.append(delimiter);
}
return stringBuilder.toString();
}