JSFiddle - React, Tailwind, and code Playground

by abude

HTML

<input type="submit" value="File Bug" onclick="return checkDuplicateMessage()" name="submit">

JavaScript

var firstMessage;
$(document).ready(function() {
firstMessage = $('[name=body],[name=bug_body],[name=message]').val();

});


function checkDuplicateMessage () {

    secondMessage = $('[name=body],[name=bug_body],[name=message]').val();
    
    if (firstMessage == "" || firstMessage === null || secondMessage === null || typeof firstMessage === 'undefined' || typeof secondMessage === 'undefined') {
        return 0;
    }

    firstMessage += '';
    secondMessage += '';

    var pos1 = 0,
        pos2 = 0,
        max = 0,
        firstLength = firstMessage.length,
        secondLength = secondMessage.length,
        p, q, l, sum;

    max = 0;

    for (p = 0; p < firstLength; p++) {
        for (q = 0; q < secondLength; q++) {
            for (l = 0;
            (p + l < firstLength) && (q + l < secondLength) && (firstMessage.charAt(p + l) === secondMessage.charAt(q + l)); l++);
            if (l > max) {
                max = l;
                pos1 = p;
                pos2 = q;
            }
        }
    }

    sum = max;

    if (sum) {
        if (pos1 && pos2) {
            sum += this.similar_text(firstMessage.substr(0, pos2), secondMessage.substr(0, pos2));
        }

        if ((pos1 + max < firstLength) && (pos2 + max < secondLength)) {
            sum += this.similar_text(firstMessage.substr(pos1 + max, firstLength - pos1 - max), secondMessage.substr(pos2 + max, secondLength - pos2 - max));
        }
    }
       for(sum=0;sum<=1; sum++){
        var yes=confirm('Are you sure you want to send a duplicate message');
        if (yes)
                return true ;
               
        else
                return false ;
            
        }
    return sum;
}