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POHow to input javascript variables in to html code?
 

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  1. POHow to input javascript variables in to html code?
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    <p>I am trying to create a mileage calculator for an app, and I found the code online.</p> <pre><code>&lt;html&gt; &lt;head&gt; &lt;meta name="viewport" content="initial-scale=1.0, user-scalable=no"/&gt; &lt;script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; var directionDisplay; var map; function initialize() { directionsDisplay = new google.maps.DirectionsRenderer(); var copenhagen = new google.maps.LatLng(55.6771, 12.5704); var myOptions = { zoom:12, `enter code here` mapTypeId: google.maps.MapTypeId.ROADMAP, center: copenhagen } map = new google.maps.Map(document.getElementById("map_canvas"), myOptions); directionsDisplay.setMap(map); } var directionsService = new google.maps.DirectionsService(); function calcRoute() { var start = document.getElementById("start").value; var end = document.getElementById("end").value; var distanceInput = document.getElementById("distance"); var request = { origin:start, destination:end, travelMode: google.maps.DirectionsTravelMode.DRIVING }; directionsService.route(request, function(response, status) { if (status == google.maps.DirectionsStatus.OK) { directionsDisplay.setDirections(response); distanceInput.value = response.routes[0].legs[0].distance.value / 1000; } }); } &lt;/script&gt; &lt;title&gt;Distance Calculator&lt;/title&gt; &lt;style type="text/css"&gt; body { font-family:Helvetica, Arial; } #map_canvas { height: 50%; } &lt;/style&gt; &lt;/head&gt; &lt;body&gt; &lt;body onload="initialize()"&gt; &lt;p&gt;Enter your current location and desired destination to get the distance&lt;/p&gt; &lt;div&gt; &lt;p&gt; &lt;label for="start"&gt;Start: &lt;/label&gt; &lt;input type="text" name="start" id="start" /&gt; &lt;label for="end"&gt;End: &lt;/label&gt; &lt;input type="text" name="end" id="end" /&gt; &lt;input type="submit" value="Calculate Route" onclick="calcRoute()" /&gt; &lt;/p&gt; &lt;p&gt; &lt;label for="distance"&gt;Distance (km): &lt;/label&gt; &lt;input type="text" name="distance" id="distance" readonly="true" /&gt; &lt;/p&gt; &lt;/div&gt; &lt;div id="map_canvas"&gt;&lt;/div&gt; &lt;/body&gt; &lt;/html&gt; javascript google geolocation maps </code></pre> <p>I want there to be a click to email link on the link on the page which opens up users email (such as Windows Live Mail on a PC or the Yahoo Mail app on a tablet) and says in the body of the email "Your mileage is ???". I can do this, but I want the mileage to be inputted automatically. I have added in this code in the html section of the script... </p> <pre><code>&lt;p&gt;&lt;a href="mailto:youremail.yahoo.com?subject=Mileage &amp;body=calcRoute('string', 'distance')"&gt;Click to send email&lt;/a&gt;&lt;/p&gt; </code></pre> <p>...and it opens the email but doesn't show the calculated mileage. Instead in the body it shows calcRoute('string, distance'). How do I get it to show the mileage?</p> <p>I understand this question is long but I would appreciate it if you could take the time to answer. It is very important that I get an answer that works as soon as possible. Thank you. </p>
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