Function boundNumber

frontend/util/util.ts:62–67

(num: number, min: number, max: number)

}

function boundNumber(num: number, min: number, max: number): number {
    if (num == null || typeof num != "number" || isNaN(num)) {
        return null;
    }
    return Math.min(Math.max(num, min), max);
}

// key must be a suitable weakmap key.  pass the new value
// it will return the prevValue (for object equality) if the new value is deep equal to the prev value