from IPython.display import HTML, Javascript, display

display(Javascript("alert('hi')"))
display(HTML("<h3>Hi there</h3>"))

HTML("""
<script>
if (typeof $ === 'undefined') {
    alert('jQuery is not defined');
} else {
    alert('jQuery is defined');
}
</script>
""")

HTML("""
<script>
if (typeof require === 'undefined') {
    alert('require.js is not defined');
} else {
    alert('require.js is defined');
}
</script>
""")