@chain1/stok-utils

Utility functions for STOK chain wallet app.

Installation

npm install @chain1/stok-utils
# or
yarn add @chain1/stok-utils

Usage

Format Utils

import { formatDisplayAmount, formatAmount } from '@chain1/stok-utils';

// Format Korean Won (no decimals)
formatDisplayAmount(1000000, 'krw'); // "1,000,000"

// Format USD (with decimals)
formatDisplayAmount(1000.50, 'usd'); // "1,000.50"

// Small amounts (< 1) show up to 6 decimals
formatDisplayAmount(0.000123, 'usd'); // "0.000123"

Date Utils

import { formatDate, getTodayTimeRange, isToday } from '@chain1/stok-utils';

// Format dates
formatDate('2025-01-10T12:30:00Z'); // "2025-01-10 12:30"
formatDate('2025-01-10T12:30:00Z', 'korean'); // "2025년 01월 10일 12:30"
formatDate('2025-01-10T12:30:00Z', 'short'); // "01/10 12:30"

// Get today's time range
const { startTime, endTime } = getTodayTimeRange();

// Check if date is today
isToday(new Date()); // true

API

formatDisplayAmount(amount, currency)

Formats amount with thousand separators based on currency.

• amount (number|string): Amount to format
• currency (string): Currency code ('krw', 'usd', 'cny', etc.)
• Returns: Formatted string

formatDate(isoDateString, format)

Formats ISO date string to readable format.

• isoDateString (string): ISO date string
• format (string): Format type ('default', 'korean', 'short', 'time', 'date', 'korean-date')
• Returns: Formatted date string

getTodayTimeRange()

Gets start and end time of today.

• Returns: Object with { startTime, endTime } as ISO strings

isToday(date)

Checks if date is today.

• date (string|Date): Date to check
• Returns: Boolean

License

MIT