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Adjust input size according to lenght of text on page load

As title says I need to adjust width of input on page load according to text that is called in it with php:

<input type="text" name="name" class="contact" value="<?php echo "$name"; ?>">

Is there a way to get width of text in it and then set width of input?

Thank you!

You can do this on page load with jQuery

$(function(){
   $('.contact').attr('size',$('.contact').val().length);
})

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