You can achieve this as below:
<!DOCTYPE html>
<html lang="en">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
</head>
<body>
<p class="boldTwoWord">How can I Bold First two words bold in a paragraph Dynamically?</p>
<br/>
<p class="boldTwoWord">I am trying to bold first two words in the Paragraph what can i do ? for that</p>
</body>
<script type="text/javascript">
var elms = $(".boldTwoWord");
for (var i = 0; i < elms.length; i++) {
str = elms[i].innerText;
var ret = str.split(" ");
var str1 = ret[0];
var str2 = ret[1];
s1 = str.replace(str1, '<strong>$&</strong>');
s2 = s1.replace(str2, '<strong>$&</strong>');
elms[i].innerHTML = s2;
}
</script>
</html>
solved How can I Bold First two words bold in a paragraph Dynamically? [closed]