Issue
I'm searching for a way to get the phone number of a device using HTML 5, Javascript or something like it. Recently, I wanted to get the coordinates of the device. I could easily do that by writing some JS like:
<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to get your coordinates:</p>
<button onclick="getLocation()">Try It</button>
<script>
var x=document.getElementById("demo");
function getLocation()
{
if (navigator.geolocation)
{
navigator.geolocation.getCurrentPosition(showPosition);
}
else{x.innerHTML="Geolocation is not supported by this browser.";}
}
function showPosition(position)
{
x.innerHTML="Latitude: " + position.coords.latitude +
"<br>Longitude: " + position.coords.longitude;
}
</script>
</body>
</html>
Now I'm almost done with my part of the job, but the last thing I need to do is to get the phone number of the smartphone that access that website.
Is there ANY way to do this? :/ please... and thank you.
Solution
There is no reliable way to get a phone number with JavaScript without prompting the user. That is, it cannot be retrieved automatically using a browser API.
It is possible inside of certain Android / iPhone application views. See discussions here: How can I get the device's phone number through JavaScript in Android?. And here: Getting the local iPhone number through SDK
As mentioned in comments, this is not a good thing to do in general (privacy, etc.). Definitely prompt the user for input if the phone number is needed.
Answered By - ebuat3989
Answer Checked By - David Goodson (JavaFixing Volunteer)
