Javascript output
JavaScript Display Possibilities
JavaScript can "display" data in different ways:
- Writing into an HTML element, using
innerHTML. - Writing into the HTML output using
document.write(). - Writing into an alert box, using
window.alert(). - Writing into the browser console, using
console.log().
Using innerHTML
To access an HTML element, JavaScript can use the
document.getElementById(id) method.
The
id attribute defines the HTML element. The innerHTML property defines the HTML content:
<h2>My First Web Page</h2>
<p>My First Paragraph.</p>
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = 7 + 5;
</script>
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