This question already has answers here:
What are Range and Index types in C# 8?
(2 answers)
Closed 2 years ago.
int[] numbers = new int[10];
numbers[9] = 10;
Console.Write(numbers[^1] == numbers[numbers.Count()-1]); //true
How does index of ^1 returns the last item in an array?
What does ^1 mean in C# compiler?
Does it have performance benefit vs numbers[numbers.Count()-1]?
numbers[^1] is the same with numbers[length-1]
They are called ranged operators in C# 8. Check this link for more details.
Related
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How to elegantly check if a number is within a range?
(33 answers)
Is there a "between" function in C#?
(18 answers)
C# Variable Name "_" (underscore) only
(5 answers)
Closed 4 months ago.
The community reviewed whether to reopen this question 4 months ago and left it closed:
Original close reason(s) were not resolved
Is there a simpler or alternate way to code the following C# sentence?
if (iValue >= 4 && iValue <= 10) {... other code ...}
Do I need to repeat the iValue twice?
I have seen a structure similar to _ = ...some code... but I am not familiar with that leading underscore?
With C#9 you can use:
if(iValue is >= 4 and <= 10)
{
Console.WriteLine("in range");
}
This question already has answers here:
How to create a sequence of integers in C#?
(9 answers)
Closed 2 years ago.
I am trying to figure out a way to generate each number between 2 other numbers. For example, if the first number is 7 and the last number is 12 I want to generate an array(?) of Int that would be Intarray {7,8,9,10,11,12}.
Is this possible?
Enumerable.Range(,) will be your friend.
This question already has answers here:
question mark inside C# syntax [duplicate]
(7 answers)
How Ternary operator works in C# [duplicate]
(3 answers)
Closed 3 years ago.
Can any one tell me the meaning of the below C# code
true? para1:para2;
For example,
char x = 'A';
Console.WriteLine(true? x : 0);
The console prints 65
I do not understand how it works.
Its a ternary operator
condition? 'execute this part if condition satisfies':'execute this part if condition not satisfies'
In your example Console.WriteLine(true? x : 0);
if something is true,it writes A(as the value of x is A) else 0
This question already has answers here:
C# equivalent to InStrRev
(3 answers)
Closed 7 years ago.
I need to rewrite
Microsoft.VisualBasic.Strings.Mid(pReturn, (InstrRev(pReturn, ".") + 1), (pReturn).Length)).Length > 4
to C# but can't find a concise solution for InstrRev.
How can I convert this line?
String.LastIndexOf would be the equivalent.
This question already has answers here:
C# memcpy equivalent
(7 answers)
memcpy function in c# [duplicate]
(6 answers)
Closed 8 years ago.
I want to convert the code from C++ to C#, there is one line code regarding with memcpy. Not sure how to convert it.
memcpy(Bucket, nBucket, 4 * L);
The original code is from TopCoderForums. I finished most of them except a few lines.
In that specific example of code (where Bucket and nBucket are int arrays) here is what you can do in c#:
Array.Copy(nBucket, Bucket, 4 * L)
(Note that I think souce and destination should be swapped around)