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Questions about PHP, JavaScript, APIs, frameworks, and websites.

WebReact Window Virtualization for Dynamic Lists with Media

Fix layout shakes in react window and react virtualized for dynamic React lists with frequent updates, images, buttons. Code examples, react-virtuoso alternative, patterns for smooth performance.

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WebInstall MODX 3.1.2 Advanced Core Relocation Fix 503 Error

Step-by-step guide to install MODX 3.1.2-pl in advanced mode with core outside public_html. Fix Error 503 'Site temporarily unavailable; missing dependencies' by pre-configuring paths, permissions, and setup.

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WebDebug Django 500 Error on /menu/ - Decimal & Template Fixes

Fix intermittent Django 500s on /menu/ by debugging template rendering and DecimalField NaNs. Steps: locate NaNs, sanitize DB, add template guards and logging.

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WebRails Nested Partials: Fix 'Missing partial' Errors

Fix 'Missing partial' errors in Ruby on Rails nested partials. Understand Rails partial lookup, underscore/format rules, and quick fixes to render partials.

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WebCloudinary Laravel: Fix Upload Error & Configure

Fix 'Call to undefined method Cloudinary::upload()' in Laravel. Step-by-step guide to configure Cloudinary Laravel package, import correct facade, set up config, and upload files using facade or Storage disk.

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WebFix Blogspot Mobile Dropdown Menu Not Showing All Items

Fix Blogspot dropdown menu on mobile showing only 4 of 7 items. Update CSS for max-width 840px: set overflow visible, max-height none. Step-by-step guide with full code for Blogger responsive navigation.

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WebFix WordPress Menu CSS: Submenu Right on Hover

Learn how to fix chaotic WordPress top menu behavior where submenus open right on hover without shifting the logo image. Add CSS via Additional CSS or child theme, using position relative on li and absolute left 100% on sub-menu.

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WebShould useEffectEvent Return Cleanup for useEffect?

Don't return cleanup from useEffectEvent. Keep lifecycle cleanup inside useEffect; useEffectEvent should be for stable event logic to avoid stale closures.

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WebFix Password Hasher Injection in Zenstruck Foundry Tests

Fix password hasher injection in Zenstruck Foundry tests: register UserFactory as a service and fetch it from the Symfony test container to enable hasher DI.

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WebJavaScript onclick: Change Text on Button Click by Index

Learn how to update text in JavaScript based on clicked button using forEach index, data attributes, or event delegation. Fix arr[element] errors with clean onclick handlers, code examples for dynamic text swaps without classes.

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WebFix HTML form POST to Google Apps Script Web App (2025)

Fix HTML form POST failures to Google Apps Script web apps after June 2025. Redeploy the web app, reauthorize scopes, update /exec URL, and avoid CORS preflight.

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WebHow to Sanitize, Validate & Store Form Data in WordPress Plugins

Master WordPress security: sanitize form inputs with sanitize_text_field() and sanitize_email(), validate with is_email(), store securely via $wpdb->insert() in custom admin plugins to prevent SQL injection and XSS attacks.

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WebFix Gutenberg block JS not updating during npm start

Fix Gutenberg block JS not updating in the editor. Edit src/, keep npm start running, run npm run build if needed, hard-refresh and clear browser/server caches.

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WebRecipe Schema Best Practices: WebPage isPartOf (JSON-LD)

Use Recipe schema with isPartOf linked to the WebPage (Option 2). Implement JSON-LD for clean structured data to boost SEO and appear in recipe rich results.

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WebUse 404 Not Found for REST API GET Missing Resource

Return 404 Not Found for GET /api/{id} when the requested REST resource doesn't exist. Include a concise JSON error body. Use 200 for empty collections.

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WebWhy Form Reloads Despite event.preventDefault() Fix

Fix page reload on form submit even with event.preventDefault() on button click. Learn to use form submit event listener, handle Enter key, programmatic submit, and debugging steps for reliable prevention.

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WebCSS Text Background Color: Make Overlay Text Readable

Mix-blend-mode: difference with isolation makes css text background color readable across color intervals. For per-char precision, use JS canvas pixel sampling.

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WebFix 'Your City?' Popup in Bitrix ASPRO Premier 1.8.0

Restore 'Your city?' popup for IP city detection in Bitrix ASPRO Premier 1.8.0. Fix after init.php deletion or template update: recreate init.php, configure Sypex Geo handler, check templates, clear caches.

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WebAngular @for Whitespace Nodes with preserveWhitespaces

Why Angular @for adds whitespace text nodes like ng-container *ngFor when preserveWhitespaces: true? Understand the behavior, equivalence to *ngFor, and fixes like ngPreserveWhitespaces or CSS flex without global changes.

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WebDynamic Primary Color in Tailwind CSS with CSS Variables

Learn to set dynamic primary colors in Tailwind CSS using CSS variables for automatic shades like bg-primary-200. Configure tailwind.config.js with rgb(var(--primary) / <alpha-value>) for runtime theming, dark mode, and opacity support without rebuilding.

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