Update: Refactor UI/UX styles, enhance JS code consistency, and improve documentation formatting

[hoangsonww]

This pull request focuses on standardizing the use of double quotes in the JavaScript codebase and updating the .prettierignore file. The main changes ensure consistent code style and improve maintainability, but do not introduce new features or alter application behavior.

Code style consistency:

• Replaced all single quotes with double quotes for strings, selectors, and attributes throughout packages/script.js to enforce a uniform quoting style. This affects DOM queries, event listener names, class and ID selectors, and string literals in all functions. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18]

Configuration updates:

• Added a rule to ignore all Markdown files (*.md) in the .prettierignore file, preventing Prettier from formatting documentation or markdown files.

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[gemini-code-assist]

Summary of Changes

Hello @hoangsonww, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on enhancing code consistency and maintainability across the project. It primarily standardizes JavaScript string literals to use double quotes, updates the Prettier configuration to ignore Markdown files, and includes minor CSS formatting improvements. These changes are purely stylistic and do not introduce new features or alter existing application behavior.

Highlights

• JavaScript Code Consistency: Standardized string literals in packages/script.js to consistently use double quotes instead of single quotes across all functions, DOM queries, event listeners, and attribute manipulations. This improves code uniformity and adheres to common style guides.
• Prettier Configuration Update: Modified the .prettierignore file to include *.md, preventing Prettier from formatting Markdown files and ensuring documentation formatting is not automatically altered.
• Copyright Year Update: The copyright year in the LICENSE file has been updated from 2024 to 2025.
• CSS Formatting Improvements: Applied minor formatting adjustments to packages/styles.css, primarily by adding newlines within complex CSS properties like linear-gradient and @keyframes definitions, enhancing readability.

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[gemini-code-assist]

Code Review

This pull request primarily focuses on code formatting and minor refactoring across packages/script.js and packages/styles.css. In script.js, changes include converting single quotes to double quotes, reformatting array definitions, and improving readability of console.log statements. In styles.css, the changes involve reformatting CSS properties and linear-gradient declarations for better readability, and adjusting the padding of .tab-btn. The LICENSE file was updated to reflect a 2025 copyright, and *.md files were added to .prettierignore. The review comments highlight two key areas for improvement in script.js: the initSearch function has a logical flaw where it incorrectly hides parent containers based on individual child elements not matching, and a refactor is suggested to correctly filter based on the container's overall text content; additionally, the initCopyButtons function directly manipulates button.style.background, and the reviewer suggests using CSS classes (.copied, .error) for managing button visual states to improve maintainability and separation of concerns.

[gemini-code-assist]

The current search implementation has a logic flaw that can cause incorrect filtering. When a search term doesn't match an element (like a <p>), it hides the element's parent (.card or section). This can hide a parent container even if other child elements within it do match the search term, because the loop will continue and a non-matching child will hide the parent, leading to an incorrect final state.

To fix this, you should iterate through the main content blocks (e.g., section or .card) and decide whether to show or hide each block based on whether its text content contains the search term. This ensures that a block is visible if any part of it matches.

  const searchableContainers = document.querySelectorAll("section[id], .card");

  searchInput.addEventListener("input", (e) => {
    const searchTerm = e.target.value.toLowerCase();

    searchableContainers.forEach((container) => {
      const text = container.textContent.toLowerCase();
      const isMatch = text.includes(searchTerm) || searchTerm === "";
      container.style.display = isMatch ? "" : "none";
    });
  });

[gemini-code-assist]

Directly manipulating button.style.background mixes JavaScript logic with CSS styling. For better maintainability and separation of concerns, it's recommended to use CSS classes to handle visual states.

You can define .copied and .error classes in your stylesheet and simply add or remove them from the button in JavaScript.

Example CSS:

.copy-btn.copied {
  background-color: var(--success-color);
}
.copy-btn.error {
  background-color: var(--danger-color);
}

Suggested change

	try {
	await navigator.clipboard.writeText(code);
	const originalText = button.textContent;
	button.textContent = '✓ Copied!';
	button.style.background = '#10b981';
	button.textContent = "✓ Copied!";
	button.style.background = "#10b981";
	setTimeout(() => {
	button.textContent = originalText;
	button.style.background = '';
	button.style.background = "";
	}, 2000);
	} catch (err) {
	console.error('Failed to copy code:', err);
	button.textContent = '✗ Error';
	button.style.background = '#ef4444';
	console.error("Failed to copy code:", err);
	button.textContent = "✗ Error";
	button.style.background = "#ef4444";
	setTimeout(() => {
	button.textContent = 'Copy';
	button.style.background = '';
	button.textContent = "Copy";
	button.style.background = "";
	}, 2000);
	}
	try {
	await navigator.clipboard.writeText(code);
	const originalText = button.textContent;
	button.textContent = "✓ Copied!";
	button.classList.add("copied");
	setTimeout(() => {
	button.textContent = originalText;
	button.classList.remove("copied");
	}, 2000);
	} catch (err) {
	console.error("Failed to copy code:", err);
	button.textContent = "✗ Error";
	button.classList.add("error");
	setTimeout(() => {
	button.textContent = "Copy";
	button.classList.remove("error");
	}, 2000);
	}