前端练习

//numeric-variable.jsvar price;var quantity;var total;price = 5;quantity = 14;total = price * quantity;var el = document.getElementById('cost');el.textContent = '$' + total;

<!--numeric-variable.html--><h1>Elderflower</h1><div id="content">    <h2>Custom Signage</h2>    <div id="cost">Cost: $5 per title</div>    <img src="images/preview.jpg" alt="Sign"></div><script src="./numeric-variable.js"></script>