Question

So I have this function here:

function ShowMessage()
{
   var themessege = document.getElementById("Form").textarea1.value;
   var dat = new Date(); 
   var fileName = document.getElementById("theFile").value;
   var image = '<img src="' + fileName + '"/>' + '<br>';
   document.getElementById("Form").textarea1.value = ""; 
   document.getElementById("Form").countdown.value = "160"; 
   document.getElementById("theFile").value = "";
   if (themessege==null || themessege=="") 
       {
       alert("There is no text to submit, please fill out the text box");
       return false;
       }

   document.getElementById("blog").innerHTML = document.getElementById("blog").innerHTML + image +  "Guest post: " + themessege + "<br />" +  dat +"<br />";   
}

I can get the text from the text area, as well as the image the user uploads. I’m wondering how I can divide the strings in the text area into subsrtings to check if they start with “www” or “htt”.

This is what I’ve written so far:

function linkify(inputText) {
   var replaceText, replacePattern1, replacePattern2;

   //URLs starting with http://, https://
   replacePattern1 =https;
   replacedText = inputText.replace(replacePattern1, '<a href= ></a>');

   //URLs starting with "www." (without // before it, or it'd re-link the ones done above).
   replacePattern2 = www.;
   replacedText = replacedText.replace(replacePattern2, <a href="http:  ></a>');
   var x = getelementbyid("blog");
   for(var i = 0;i < x.length;i++){
      if(blog.charAt(i) == replacePattern1){
      return replacedText;
      }
   }
   else if(blog.charAt(i) == replacePattern2){
     return replacedText;
   }
}

I know that the charAt(i) only checks for 1 letter….

Most of the answers that I found were on PHP, I’m trying to find a solution using JavaScript.

Answer 1

linkify function is not correctly written. try this one.

function linkify(inputText) {
var regUrl = /(http:[\d]{0,4}\/\/)?[a-zA-Z0-9\-\.]+\.(com|org|net|mil|edu|COM|ORG|NET|MIL|EDU)/;

return inputText.replace(regUrl,'<a href="" />');
}
;
alert(linkify('string containing link www.google.com'));// output: string containing link <a href="" />