Length of Empty String in Label

Question

question

Steven Chen asked Apr 14 2022 at 7:02 AM Phil BoBo answered Apr 14 2022 at 9:41 PM

Length of Empty String in Label

Hello,

I found that doesn't make sense to me that empty string label length is 1.

clearconsole();
treenode obj = Model.find("Shape17");
string a;
string b = "";
obj.alabel = a;
 
print("a:" + a.length);
print("b:" + b.length);
print("alabel:" + obj.alabel.length);// length of empty string equal to 1 doesn't make sense in FlexScript
print("a=b:" + (a == b));
print("a=alabel:" + (a == obj.alabel)

empty_string_length_v22.1.fsm

Software Version:

FlexSim 22.1.0

labels string

empty-string-length-v221.fsm (25.6 KiB)

· 1

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Answer 1 · 2022-04-14T21:41:04Z

Phil BoBo answered Apr 14 2022 at 9:41 PM

When you access a label, you get a Variant back, not a string.

Variant.length is array length. For a single value, that's 1. FlexScript Class - Variant (flexsim.com)

string.length is the number of characters in a string. To get string length, you need to cast to a string using .as(string) or assigning the value to a string variable. FlexScript Class - string (flexsim.com)

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