What is the purpose of the 'alt' attribute in HTML?

 Theme: HTML  Role: Front End Developer  Function: Technology

  Interview Question for Front-End Developer:  See sample answers, motivations & red flags for this common interview question. About Front-End Developer: Creates the user interface and user experience of websites and applications. This role falls within the Technology function of a firm. See other interview questions & further information for this role here

 Sample Answer 


  Example response for question delving into HTML with the key points that need to be covered in an effective response. Customize this to your own experience with concrete examples and evidence

  •  Purpose of the alt attribute: The alt attribute in HTML is used to provide alternative text for an image when it cannot be displayed
  •  Accessibility: The alt attribute is crucial for accessibility as it allows screen readers to describe the image to visually impaired users
  •  SEO: Including descriptive alt text helps search engines understand the content of the image, improving SEO
  •  Fallback for broken images: If an image fails to load, the alt text is displayed instead, providing context and preventing a broken user experience
  •  Compliance with web standards: The alt attribute is required by HTML standards, ensuring websites adhere to best practices and accessibility guidelines

 Underlying Motivations 


  What the Interviewer is trying to find out about you and your experiences through this question

  •  Technical knowledge: Assessing understanding of HTML and its attributes
  •  Attention to accessibility: Determining awareness of web accessibility standards
  •  Problem-solving skills: Evaluating ability to provide alternative text for images

 Potential Minefields 


  How to avoid some common minefields when answering this question in order to not raise any red flags

  •  Lack of understanding: Not knowing the purpose of the alt attribute or providing an incorrect explanation
  •  Vague or generic response: Providing a general answer without specific details about the alt attribute's purpose
  •  Ignoring accessibility: Not mentioning the importance of alt attribute for visually impaired users and accessibility compliance
  •  Limited knowledge: Not being able to explain how the alt attribute is used in different HTML elements or its impact on SEO
  •  Inability to provide examples: Failing to provide real-world examples of when and how the alt attribute should be used

 Related

  Other questions asked for the Front-End Developer in Technology function. View details for the Front-End Developer here