How to Use JavaScript to Search for Whole Words Only?

How to Perform a Whole Word Search in JavaScript

Matching a whole word using JavaScript's search() method can be achieved by employing a regular expression pattern that delimits the desired word with word boundaries denoted by b.

Example Implementation:

const lookup = '\n\n\n\n\n\n2    PC Games        \n\n\n\n';
const textbox = document.getElementById('textbox');

// Trim whitespace from 'lookup' for accurate matching
lookup = lookup.trim();

// To perform a dynamic search based on 'lookup', utilize a dynamic regular expression
const regex = new RegExp("\b" + lookup + "\b");

// Test the regex against the value of the 'textbox'
if (regex.test(textbox.value)) {
  // Handle success case: word found as a whole word
} else {
  // Handle failure case: word not found as a whole word
}

Additional Notes:

• Ensure that word boundaries (b) are placed appropriately to prevent partial matches.
• The test() method returns true if the regex matches at least one occurrence in the specified string.
• For testing purposes, you can use tools like Regexpal or Regex Object to verify your regular expressions.

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