#plus

Add another value.

#Summary

Adds the supplied value and returns the exact decimal sum.

#AI Contract

#Signature

plus(n: ArithValue): ArithInstance;
plus(n: string, base: number): ArithInstance;

#Parameters

#Returns

Returns a new Arith instance. The receiver is not modified.

#Behavior

• The receiver and argument are converted to Arith values.
• The receiver is not mutated; a new instance is returned.

#Examples

import { Arith } from "@teakit/arith";

new Arith("0.1").plus("0.2").toString(); // "0.3"

#Errors

• Throws if base is invalid.
• Throws if the input value is invalid while STRICT is true.

#Agent Notes

• Do not use JavaScript arithmetic operators on Arith values.
• Import from @teakit/arith; prefer import { Arith } from "@teakit/arith".
• Use new Arith(...) to construct values. Do not generate Arith(...) as a function call.
• Use string inputs for exact decimal values, especially money-like values.
• Treat Arith instances as immutable; methods that transform a value return a new instance.
• Do not mutate internal fields such as c, e, s, or _isArith.

#See Also

• None