Consider this scenario: a user uses their mouse to select the first line of a paragraph, and then later goes on to select another line lower down on the page. How can we ensure that both the previously selected text and the new selection remain highlighted? What steps should be taken to achieve this functionality?
Thank you in advance for your assistance.
Indeed, achieving this functionality requires a clever combination of monitoring the mouseDown/mouseUp event and utilizing the document.selection/getSelection methods.
Here is the basic approach:
For smoother implementation across different browsers, it is recommended to use a tool for handling cross-browser compatibility. Take a look at this developer's code snippet
It is unlikely that highlighting is controlled on the server-side or localhost. Typically, highlighting functions are built into the operating system or web browser.
I apologize for not being able to provide a more helpful solution. One alternative method is to use IFrames, which can display content independently from the primary page's highlighted elements.
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