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Update
In C#10, this syntax is now valid and the compiler will infer a 'natural type' for a lambda Example here
C# 9 and Earlier
I am aware that Func<>s cannot be implicitly typed directly via the var keyword, although I was rather hoping that I could do the following assignment of a predicate:
Func<Something, bool> filter = (someBooleanExpressionHere)
? x => x.SomeProp < 5
: x => x.SomeProp >= 5;
However, I get the error cannot resolve the symbol, 'SomeProp'
At the moment, I have resorted to the more cumbersome if branch assignment, which doesn't seem as elegant.
Func<Something, bool> filter;
if (someBooleanExpressionHere)
{
filter = x => x.SomeProp < 5;
}
else
{
filter = x => x.SomeProp >= 5;
}
Have I missed something, or will I need to stick with the if-branch assignment?
392
The conditional (ternary) operator is the only JavaScript operator that takes three operands: a condition followed by a question mark ( ? ), then an expression to execute if the condition is truthy followed by a colon ( : ), and finally the expression to execute if the condition is falsy.
The conditional ternary operator in JavaScript assigns a value to a variable based on some condition and is the only JavaScript operator that takes three operands. result = 'somethingelse'; The ternary operator shortens this if/else statement into a single statement: result = (condition) ?
Nope, you can only assign values when doing ternary operations, not execute functions.
var filter = (someBooleanExpressionHere)
? new Func<Something, bool>(x => x.SomeProp < 5)
: x => x.SomeProp >= 5;
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