53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
import { formatFixed, parseFixed } from "./fixednumber.js";
|
|
import { assertArgument } from "./errors.js";
|
|
const names = [
|
|
"wei",
|
|
"kwei",
|
|
"mwei",
|
|
"gwei",
|
|
"szabo",
|
|
"finney",
|
|
"ether",
|
|
];
|
|
/**
|
|
* Converts %%value%% into a //decimal string//, assuming %%unit%% decimal
|
|
* places. The %%unit%% may be the number of decimal places or the name of
|
|
* a unit (e.g. ``"gwei"`` for 9 decimal places).
|
|
*
|
|
*/
|
|
export function formatUnits(value, unit) {
|
|
if (typeof (unit) === "string") {
|
|
const index = names.indexOf(unit);
|
|
assertArgument(index >= 0, "invalid unit", "unit", unit);
|
|
unit = 3 * index;
|
|
}
|
|
return formatFixed(value, (unit != null) ? unit : 18);
|
|
}
|
|
/**
|
|
* Converts the //decimal string// %%value%% to a [[BigInt]], assuming
|
|
* %%unit%% decimal places. The %%unit%% may the number of decimal places
|
|
* or the name of a unit (e.g. ``"gwei"`` for 9 decimal places).
|
|
*/
|
|
export function parseUnits(value, unit) {
|
|
assertArgument(typeof (value) === "string", "value must be a string", "value", value);
|
|
if (typeof (unit) === "string") {
|
|
const index = names.indexOf(unit);
|
|
assertArgument(index >= 0, "invalid unit", "unit", unit);
|
|
unit = 3 * index;
|
|
}
|
|
return parseFixed(value, (unit != null) ? unit : 18);
|
|
}
|
|
/**
|
|
* Converts %%value%% into a //decimal string// using 18 decimal places.
|
|
*/
|
|
export function formatEther(wei) {
|
|
return formatUnits(wei, 18);
|
|
}
|
|
/**
|
|
* Converts the //decimal string// %%ether%% to a [[BigInt]], using 18
|
|
* decimal places.
|
|
*/
|
|
export function parseEther(ether) {
|
|
return parseUnits(ether, 18);
|
|
}
|
|
//# sourceMappingURL=units.js.map
|