im working on creating a reproducible example but i have found that in a loop

public void function testPrecisionEvaluateString(){
		
		var p1 = 23.74;
		var p2 = 37.05;

		var pe = precisionEvaluate('p1 + p2'); //works correctly
		assertEquals( pe, 60.79 );
	}
	
	public void function testPrecisionEvaluate(){
		
		var p1 = 23.74;
		var p2 = 37.05;

		var pe = precisionEvaluate(p1 + p2); //returns trailing decimal place .7900000001
		assertEquals( pe, 60.79 );
	}

What is the actual difference that could cause this?

I'm guessing it's cos with the latter one, yer using the CFML engine to add

p1 + p2

before doing the precision piece, whereas with the former the whole thing is being handled within the inner workings of

precisionEvaluate

. Just a guess though. I have NFI how

precisionEvaluate

works. (and trycf.com is not helping here... /me shakes fist at Abram, whilst laughing)

oh, that makes a lot of sense, yeah i ran into the same with trycf, im sure it saw evaluate and bailed

Yeah, you have to pass in a string otherwise it defeats the purpose

the docs are confusing because it only shows raw numbers as opposed to variables so i didnt realize it had to be a string that included variables

precisionEvaluate('a + b')

I had something in the back of my mind that

precisionEvaluate

did similar sort of magic to

parameterExists

or

isNull

and somehow didn't evaluate the expression before it was passed into it. If that makes sense.