JavaScript Not Converting English to Devnagari Characters on KeyUp Event

Other Questions JavaScript
1

I attempted to utilize JavaScript to translate English text into Devnagari script. For instance, if a user types ‘India’ into an input field, the expected output should be ‘इंडिया’. However, I’ve encountered issues with the code not performing as intended. I’m struggling to identify what went wrong. Here’s the JavaScript I’m using:

// Mapping for basic Devnagari characters
devnagariMap = {'a':'अ','aa':'आ','i':'इ','ii':'ई', ...};

// Rules for vowel combinations
gradation = { 'aa':'ा','i':'ि', ... };

// Function to process input
function convertToDevnagari(input) {
  let output = '';
  for (let char of input) {
    // Logic for determining character conversion
    output += devnagariMap[char] || char;
  }
  return output;
}

// Implementation in HTML
$(document).ready(function() {
  $('.input-field').on('keyup', function() {
    let typedValue = $(this).val();
    $('#output').val(convertToDevnagari(typedValue));
  });
});

And in the HTML setup, I’m trying to implement it as follows:

<label>Name:</label>
<input type="text" class="input-field" placeholder="Enter your name in Devnagari">
<input type="text" id="output" readonly>
2

From my past experience with similar issues, there are a few things you might want to consider. First, ensure that your devnagariMap covers all possible necessary combinations rather than just a single character. Complex mapping can be achieved by processing substrings instead of individual characters. Additionally, JavaScript’s string handling is case-sensitive, so ensure the input is consistently processed as either upper or lowercase to match your mapping. Also, consider using more robust libraries like Indicjs which are specifically designed for transliteration tasks, as they may handle edge cases more efficiently.

3

You may hv missed using regex to handle more complex string parts, like multi-char combos. js’s string handling might not be enough for such mappings. Also, chk if the script loads proplerly and ensure there’s no typo in devnagariMap. sometimes log each step to see where it messes up!

4

You may need to consider asynchronous handling for your character mappings if running on key-up events causes performance issues especially with long input texts. JavaScript promises or async functions could ensure smoother operation without freezing the UI. Also, verify that jQuery is referenced correctly in your HTML file and there are no version conflicts, as this could cause issues with your key-up event listener. Testing with various browsers to ensure compatibility could also help identify specific problems.