#eq

Returns whether the receiver is exactly equal to another decimal value.

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

0 === 1e-324; // true

const x = Arith.from("0");
x.eq("1e-324"); // false
Arith.from("-0").eq(x); // true
Arith.from("0.1").add("0.2").eq("0.3"); // true

// Use the (string, base) overload when the comparison value is written in another base.
Arith.from("10").eq("a", 16); // true

// Like JavaScript, NaN does not equal NaN.
Arith.from("NaN").eq("NaN"); // false

#API Reference

#Signature

eq(n: ArithValue): boolean;
eq(n: string, base: number): boolean;

#Parameters

#Returns

Returns true when values compare equal; otherwise returns false.

#Throws

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

#Agent Contract

#Agent Notes

• Use comparison methods instead of JavaScript comparison operators on Arith values.
• Import with import { Arith } from "@teakit/arith"; default imports are unsupported.
• Use Arith.from(...) to create values. Do not generate new Arith(...) or Arith(...).
• 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.