Extract email addresses from a text file using JavaScript

Question

I have more than 2000 email addresses. which i have exported from feedburner. And the email address look like below;

    adminvicky@gmail.com   Active  12/05         


        

Answer 1

I would use string.split(" ") and split the textfile at its spaces.

Example:

var string = "    adminvicky@gmail.com   Active  12/05/2015  03:07   adminvishal250@gmail.com   Pending Verification 8/05/2015  01:07"
var array = string.split(" ");
var emails = [];
for(var i = 0; i < array.length; i++){
    if(array[i].indexOf("@") != -1){
       emails.push(array[i]);
    }
};

Then you have an array emails which contains your email adresses.

Answer 2

Let's try with this simple regular expression:

var record = '    adminvicky@gmail.com   Active  12/05/2015  03:07';
var regExp = /^\s*(.*?)\s+/;
console.log(record.match(regExp)[1]);

Answer 3

You can try this regex instead:

a.replace(/\s+.+$/g, '')

This should work for your case.

Answer 4

Try this one, i think it will do the job

var a = document.getElementById('input').value;

document.getElementById('output').innerHTML = extractEmails(a).join('\n');

And the function:

function extractEmails (text)
{
    return text.match(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)/gi);
}

Here is a fiddle

Here is also an example using jQuery also Extract all email addresses from bulk text using jquery

Answer 5

Using JQuery load function to read content from .txt file and display email as hyperlink:

$(document).ready(function(){
        //Get the text content from txt file using load function
            $( "#divid" ).load( "/xyz.txt",function(response, status, xhr){
                if(status=='success') {
                     /* After loading the static text, modifying the email address to hyper link */
                      var corrected = response;
                      var emailRegex =/[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}/g;
                      corrected.match(emailRegex).forEach(function(email) {
                      console.log(email);
                      corrected = corrected.replace ( email, '<a href="mailto:' + email + '">' + email + '</a>' );
                    });

                    $('#divid').html(corrected);
                }

                });
        });

Answer 6

you can easily write a regex and iterate over the results like:

var reg = new RegExp(/^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/g);   
var email;
while((email = reg.exec(targetText)) !== null) {
    // do something with the email
}