@formatjs/ecma402-abstract/ToIntlMathematicalValue.js

A collection of implementation for ECMAScript abstract operations

import { Decimal } from "@formatjs/bigdecimal";
import { ToPrimitive } from "./262.js";
/**
* https://tc39.es/ecma402/#sec-tointlmathematicalvalue
* Converts input to a mathematical value, supporting BigInt
*/
export function ToIntlMathematicalValue(input) {
	// Handle BigInt directly before ToPrimitive, since ToPrimitive doesn't
	// handle bigint in its type signature (though the spec says it should return it as-is)
	if (typeof input === "bigint") {
		return new Decimal(input.toString());
	}
	let primValue = ToPrimitive(input, "number");
	// Handle other primitive types
	if (primValue === undefined) {
		return new Decimal(NaN);
	}
	if (primValue === true) {
		return new Decimal(1);
	}
	if (primValue === false) {
		return new Decimal(0);
	}
	if (primValue === null) {
		return new Decimal(0);
	}
	// Try to convert to Decimal (handles numbers and strings)
	try {
		return new Decimal(primValue);
	} catch {
		return new Decimal(NaN);
	}
}