createTextNode()

js/script.js

function funCreateTextNode() {
var val = document.getElementById('d1');
var elP = val.childNodes;
elP[1].appendChild(document.createTextNode('<b>Hello World!</b>'));
elP[3].appendChild(document.createTextNode('<b>Привет Мир!</b>'));
elP[5].appendChild(document.createTextNode('<b>To be or not to be?</b>'));
}
function funInnerHTML() {
var val = document.getElementById('d2');
var elP = val.childNodes;
elP[1].innerHTML = '<b>Hello World!</b>';
elP[3].innerHTML = '<b>Привет Мир!</b>';
elP[5].innerHTML = '<b>To be or not to be?</b>';
}
function funMake() {
funCreateTextNode();
funInnerHTML();
}

function funCreateTextNode() {
var val = document.getElementById('d1');
var elP = val.childNodes;
elP[1].appendChild(document.createTextNode('<b>Hello World!</b>'));
elP[3].appendChild(document.createTextNode('<b>Привет Мир!</b>'));
elP[5].appendChild(document.createTextNode('<b>To be or not to be?</b>'));
}
function funInnerHTML() {
var val = document.getElementById('d2');
var elP = val.childNodes;
elP[1].innerHTML = '<b>Hello World!</b>';
elP[3].innerHTML = '<b>Привет Мир!</b>';
elP[5].innerHTML = '<b>To be or not to be?</b>';
}
function funMake() {
funCreateTextNode();
funInnerHTML();
}

index.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<script src="js/script.js"></script>
</head>
<body>
<div id="d1">
<p></p>
<p></p>
<p></p>
</div>
<div id="d2">
<p></p>
<p></p>
<p></p>
</div>
<script>
funMake();
</script>
</body>
</html>

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>New Page</title>
<script src="js/script.js"></script>
</head>
<body>
<div id="d1">
<p></p>
<p></p>
<p></p>
</div>
<div id="d2">
<p></p>
<p></p>
<p></p>
</div>
<script>
funMake();
</script>
</body>
</html>