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HomeWeb Front-endJS TutorialHow to Detect Clicked Words in Text Without Modifying HTML?

 How to Detect Clicked Words in Text Without Modifying HTML?

Click Event-Based Word Detection

In web development, identifying the clicked word within a text can be imperative for interactive applications. One common approach involves parsing the HTML and wrapping each word in a span element, using jQuery to detect clicks and retrieve the word's text. However, this solution is inefficient and aesthetically unappealing.

To enhance the process, an alternative method is available that eliminates the need for mass HTML modifications. This solution utilizes the Selection API, supported in modern browsers such as Webkit, Mozilla, and IE9 .

The provided JavaScript implementation (https://jsfiddle.net/Vap7C/15/) enables word detection through the following steps:

  1. Define a click event handler for the target text element.
  2. Utilize the getSelection() method to retrieve the current text selection.
  3. Create a Range object to determine the word's starting and ending positions within the text.
  4. Iterate through the text to find the word's starting position, based on whitespace.
  5. Extend the range to find the word's ending position, again based on whitespace.
  6. Trim the selected text and display it as the clicked word.

This method offers a faster and cleaner implementation for click-based word detection, without requiring extensive HTML modifications or external browser APIs. It operates effectively in various browsers, providing a reliable solution for interactive text-based applications.

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