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Convert a negative number to a positive one in JavaScript
Is there a math function in JavaScript that converts numbers to positive value?
16 Answers
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How is null + true a string?
...1) That means that this will fail to compile:
// Error: Cannot implicitly convert type 'string' to 'Foo'
Foo f = null + true;
Other second-operand types will use some other operators, of course:
var x = null + 0; // x is Nullable<int>
var y = null + 0L; // y is Nullable<long>
var z =...
Safe String to BigDecimal conversion
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I needed a solution to convert a String to a BigDecimal without knowing the locale and being locale-independent. I couldn't find any standard solution for this problem so i wrote my own helper method. May be it helps anybody else too:
Update: Warn...
How can I cast int to enum?
...urEnum is dynamic and will only be known at runtime, and what I want is to convert to Enum?
– Shimmy Weitzhandler
Feb 19 '12 at 9:56
235
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Dynamic array in C#
...mic Array Example:
Console.WriteLine("Define Array Size? ");
int number = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter numbers:\n");
int[] arr = new int[number];
for (int i = 0; i < number; i++)
{
arr[i] = Convert.ToInt32(Console.ReadLine());
}
for (int i = 0; i < arr.L...
Logical XOR operator in C++?
...is will work:
if(!A != !B) {
// code here
}
Note the ! are there to convert the values to booleans and negate them, so that two unequal positive integers (each a true) would evaluate to false.
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Why does Math.Floor(Double) return a value of type Double?
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Convert.ToInt32(Math.Floor(Convert.ToDouble(value)))
This will give you the exact value what you want like if you take 4.6 it returns 4 as output.
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What is the worst real-world macros/pre-processor abuse you've ever come across?
...non-C++ programmer: Is the main problem here that a threadsafe function is converted into a non-threadsafe one? Or that InterlockedIncrement expects a pointer, so now you'll increase the pointer instead of what it's pointing at? Or both?
– Tim Pietzcker
Sep 20 ...
Objective-C : BOOL vs bool
...);
if (b2 != true) printf("ONCE AGAIN - NOT REAL b2 \n");
If you want to convert bool to BOOL you should use next code
BOOL b22 = b1 ? YES : NO; //and back - bool b11 = b2 ? true : false;
So, in our case:
BOOL b22 = b1 ? 2 : NO;
if (b22) printf("ONCE AGAIN MORE - REAL b22 \n");
if (b22 != Y...
Why would you use Expression rather than Func?
...nstead of executing them. For example, LINQ to SQL gets the expression and converts it to the equivalent SQL statement and submits it to server (rather than executing the lambda).
Conceptually, Expression<Func<T>> is completely different from Func<T>. Func<T> denotes a deleg...