When user enters text in paragraph for mailto, http or incorrect http link and we want to make it clickable use below javascript code.
EX :- 
FROM –
Hello these are my links www.google.com , http://www.google.com or contact us to test@inheritx.com
TO
Hello these are my links www.google.com , http://www.google.com or contact us to test@inheritx.com
function linkify(inputText) {
    var replacedText, replacePattern1, replacePattern2, replacePattern3;
    //URLs starting with http://, https://, or ftp://
    replacePattern1 = /(\b(https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gim;
    replacedText = inputText.replace(replacePattern1, ‘$1‘);
    //URLs starting with “”. (without // before it, or it’d re-link the ones done above).
    replacePattern2 = /(^|[^\/])(www\.[\S]+(\b|$))/gim;
    replacedText = replacedText.replace(replacePattern2, ‘$1$2‘);
    //Change email addresses to mailto:: links.
    replacePattern3 = /(([a-zA-Z0-9\-\_\.])+@[a-zA-Z\_]+?(\.[a-zA-Z]{2,6})+)/gim;
    replacedText = replacedText.replace(replacePattern3, ‘$1‘);
    return replacedText;
}