rails image_tag link size

The image_tag method in Ruby on Rails is used to generate an HTML <img> tag for displaying an image on a webpage. It takes the image source as the first argument and accepts various options for customizing the image tag.

Here is an explanation of each step involved in using the image_tag method in Ruby on Rails:

  1. Start by including the image_tag method in your view file. You can do this by using the <%= %> tags to embed Ruby code within your HTML template.

  2. Inside the image_tag method, provide the image source URL as the first argument. This can be a relative or absolute path to the image file.

  3. Optionally, you can provide additional options as a hash after the image source. These options allow you to customize the image tag. Some common options include:

  4. alt: Specifies alternative text for the image, which is displayed when the image cannot be loaded.
  5. class: Specifies one or more CSS classes to apply to the image tag.
  6. size: Specifies the dimensions of the image in the format widthxheight, e.g., "200x300".

  7. title: Specifies the title attribute for the image, which is displayed as a tooltip when the user hovers over the image.

  8. You can also include a block of HTML code inside the image_tag method. This block will be displayed as fallback content if the image fails to load.

  9. Finally, the image_tag method returns the generated HTML <img> tag as a string. You can output this string directly in your view file using <%= %> tags to display the image on the webpage.

That's it! By following these steps, you can use the image_tag method in Ruby on Rails to generate an HTML image tag with the desired source and options.