Function saveToHistory

script.js:181–216

(cleanedText, originalText)

    }

    function saveToHistory(cleanedText, originalText) {
        if (!isHistoryEnabled() || !cleanedText.trim()) {
            return;
        }

        // Prevent duplicate history items when the same input/output is processed again
        if (originalText === lastCleanedInput && cleanedText === lastCleanedOutput) {
            return;
        }

        try {
            const history = getHistory();
            const newItem = {
                id: Date.now(),
                timestamp: new Date().toISOString(),
                cleaned: cleanedText,
                original: originalText || '',
                preview: cleanedText.substring(0, 100) + (cleanedText.length > 100 ? '...' : '')
            };

            history.unshift(newItem);

            const trimmedHistory = history.slice(0, 50);

            localStorage.setItem(HISTORY_KEY, JSON.stringify(trimmedHistory));

            // Update tracking variables
            lastCleanedInput = originalText;
            lastCleanedOutput = cleanedText;

            showHistorySection();

            updateHistoryDisplay();
        } catch (error) {
        }
    }

    function updateHistoryVisibility() {
        const history = getHistory();