Function getNumber

lib.esm/utils/maths.js:123–144

(value, name)

 *  a //number//, then an ArgumentError will be thrown for %%name%%.
 */
export function getNumber(value, name) {
    switch (typeof (value)) {
        case "bigint":
            assertArgument(value >= -maxValue && value <= maxValue, "overflow", name || "value", value);
            return Number(value);
        case "number":
            assertArgument(Number.isInteger(value), "underflow", name || "value", value);
            assertArgument(value >= -maxValue && value <= maxValue, "overflow", name || "value", value);
            return value;
        case "string":
            try {
                if (value === "") {
                    throw new Error("empty string");
                }
                return getNumber(BigInt(value), name);
            }
            catch (e) {
                assertArgument(false, `invalid numeric string: ${e.message}`, name || "value", value);
            }
    }
    assertArgument(false, "invalid numeric value", name || "value", value);
}
/**
 *  Converts %%value%% to a number. If %%value%% is a Uint8Array, it
 *  is treated as Big Endian data. Throws if the value is not safe.