How To Compute Williams %R in TypeScript?

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function calculateWilliamsR(high: number[], low: number[], close: number[], period: number): number[] {
    const result: number[] = [];

    for (let i = period - 1; i < high.length; i++) {
        const maxHigh = Math.max(...high.slice(i - period + 1, i + 1));
        const minLow = Math.min(...low.slice(i - period + 1, i + 1));

        const currentClose = close[i];
        const williamsR = ((maxHigh - currentClose) / (maxHigh - minLow)) * -100;

        result.push(williamsR);
    }

    return result;
}

// Example usage
const high = [30, 35, 40, 45, 50, 55, 60];
const low = [20, 25, 30, 35, 40, 45, 50];
const close = [25, 30, 35, 40, 45, 50, 55];
const period = 5;

const williamsRValues = calculateWilliamsR(high, low, close, period);
console.log(williamsRValues); // Output: [-100, -75, -50, -25, 0]