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EITCA Academy

EITCA Academy

The European Information Technologies Certification Institute - EITCI ASBL

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EITCI Institute ASBL

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Governing European IT Certification (EITC) framework in support of the IT professionalism and Digital Society

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Questions and answers designated by tag: JavaScript

What are the exceptions to SOP?

Sunday, 22 March 2026 by Jose Carvalho

The Same-Origin Policy (SOP) is a fundamental security concept implemented in web browsers to isolate documents and scripts loaded from different origins. Its primary purpose is to prevent malicious scripts on one page from obtaining access to sensitive data on another web page through the browser, thus mitigating threats such as cross-site scripting (XSS) and

  • Published in Cybersecurity, EITC/IS/ACSS Advanced Computer Systems Security, Network security, Web security model
Tagged under: Browser Security, CORS, CSP, CSRF, Cybersecurity, IFrame, JavaScript, SOP, Web Security, WebSockets, XSS

Can someone without experience in Python and with basic notions of AI use TensorFlow.js to load a model converted from Keras, interpret the model.json file and shards, and ensure interactive real-time predictions in the browser?

Saturday, 22 November 2025 by JOSE ALFONSIN PENA

The question posed concerns the feasibility for an individual with minimal Python experience and only a basic understanding of artificial intelligence concepts to use TensorFlow.js for loading a model converted from Keras, interpret the structure and contents of the model.json file and associated shard files, and provide interactive real-time predictions in a browser environment. The

  • Published in Artificial Intelligence, EITC/AI/GCML Google Cloud Machine Learning, Advancing in Machine Learning, Importing Keras model into TensorFlow.js
Tagged under: Artificial Intelligence, JavaScript, Keras, Machine Learning Models, Model Deployment, Real-Time Prediction, TensorFlow.js, Web Development

How can an expert in artificial intelligence, but a beginner in programming, take advantage of TensorFlow.js?

Saturday, 22 November 2025 by JOSE ALFONSIN PENA

TensorFlow.js is a JavaScript library developed by Google for training and deploying machine learning models in the browser and on Node.js. While its deep integration with the JavaScript ecosystem makes it popular among web developers, it also presents unique opportunities for those with an advanced understanding of artificial intelligence (AI) concepts but limited programming experience.

  • Published in Artificial Intelligence, EITC/AI/GCML Google Cloud Machine Learning, Advancing in Machine Learning, Introduction to TensorFlow.js
Tagged under: Artificial Intelligence, JavaScript, Machine Learning, Neural Networks, TensorFlow.js, Transfer Learning, Visualization, Web Development

How can developers initiate a phone call using the Tap to Call component, and what specific settings need to be configured in the Properties panel?

Wednesday, 21 August 2024 by EITCA Academy

Initiating a phone call using the Tap to Call component in Google Web Designer (GWD) involves a series of steps that developers must carefully follow to ensure the component functions correctly. This process is pivotal for creating interactive and user-friendly web pages, particularly for businesses that want to enhance customer engagement by allowing users to

  • Published in Web Development, EITC/WD/GWD Google Web Designer, Advancing in GWD, Components overview, Examination review
Tagged under: Accessibility, CSS, HTML5, JavaScript, Mobile Development, Web Development

How does Google Web Designer enable the creation of interactive and dynamic content specifically for mobile devices?

Wednesday, 21 August 2024 by EITCA Academy

Google Web Designer (GWD) is a powerful tool that enables the creation of interactive and dynamic content specifically tailored for mobile devices. This application, developed by Google, is designed to facilitate the production of sophisticated, visually appealing, and highly functional web content without requiring extensive coding knowledge. It supports a variety of advertising formats, including

  • Published in Web Development, EITC/WD/GWD Google Web Designer, Introduction, Introduction to Google Web Designer, Examination review
Tagged under: Animation, CSS3, DoubleClick, Google Ads, HTML5, Interactive Content, JavaScript, Mobile Advertising, Responsive Design, Web Development, Web Development Tools

What types of tags should be included when showcasing a project on Webflow to ensure it reaches the appropriate audience?

Monday, 19 August 2024 by EITCA Academy

When showcasing a project on Webflow, it is essential to incorporate a variety of tags to ensure the project reaches the appropriate audience. Tags serve as metadata that help categorize and identify the content within the project, making it easier for search engines and users to find relevant information. The types of tags to include

  • Published in Web Development, EITC/WD/WFCE Webflow CMS and eCommerce, Portfolio, Showcasing your site, Examination review
Tagged under: Animations, API, APIs, Blog, Corporate, CSS, Design, Developers, E-commerce, E-Learning, Entrepreneurs, FinTech, Healthcare, HTML, JavaScript, Landing Page, Marketers, Online Store, Payment Gateway, Portfolio, Responsive Design, Retail, SEO, User Experience, Web Development, Webflow, Webflow CMS

Why is it important to reduce padding and possibly remove columns in the mobile landscape view of a contact page?

Monday, 19 August 2024 by EITCA Academy

In the domain of web development, particularly when utilizing platforms such as Webflow CMS for eCommerce and site building, ensuring the responsiveness of a contact page is paramount. Responsiveness refers to the design and development of a web page that adjusts smoothly to various screen sizes and orientations, providing an optimal user experience across a

  • Published in Web Development, EITC/WD/WFCE Webflow CMS and eCommerce, Site building, Contact page: responsiveness, Examination review
Tagged under: CSS, JavaScript, Responsive Design, UX, Web Development, Webflow

How can you ensure the accuracy and functionality of a contact page to prevent spam and present contact details clearly?

Monday, 19 August 2024 by EITCA Academy

Ensuring the accuracy and functionality of a contact page while preventing spam and presenting contact details clearly is a multifaceted task that requires a combination of design principles, technical implementations, and best practices in user experience (UX) and web development. This answer will consider various strategies and techniques pertinent to Webflow CMS and eCommerce site

  • Published in Web Development, EITC/WD/WFCE Webflow CMS and eCommerce, Site building, Contact page, Examination review
Tagged under: CRM, GDPR, HTML, JavaScript, UX, Web Development

What method can be used to display colleagues of the current team member while excluding the current team member from the list?

Monday, 19 August 2024 by EITCA Academy

To display colleagues of the current team member while excluding the current team member from the list in Webflow CMS, you can utilize a combination of Webflow's Collection Lists, filters, and custom code (if necessary). This approach requires a sound understanding of Webflow's CMS functionalities, including the use of dynamic lists and conditional visibility settings.

  • Published in Web Development, EITC/WD/WFCE Webflow CMS and eCommerce, Site building, Team page: team member detail page, Examination review
Tagged under: CMS, Collection List, JavaScript, Team Members, Web Development, Webflow

What steps should be taken to ensure that the biography section resizes dynamically based on the content?

Monday, 19 August 2024 by EITCA Academy

To ensure that the biography section resizes dynamically based on the content on a team member detail page within a Webflow CMS and eCommerce environment, several strategic steps need to be taken. These steps encompass a combination of proper content management, responsive design principles, and effective use of Webflow's built-in features. This approach ensures that

  • Published in Web Development, EITC/WD/WFCE Webflow CMS and eCommerce, Site building, Team page: team member detail page, Examination review
Tagged under: Accessibility, CMS, Content Management, Front-end Development, JavaScript, Performance Optimization, Responsive Design, Rich Text, UX Design, Web Development, Webflow
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