JavaScript – Change Paragraph Text to Bold

To change paragraph text to bold using JavaScript, get the reference to the paragraph element, and assign element.style.fontWeight property with value of "bold".

Example

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Copy
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
</head> 
<body>
    <p id="myPara">Bold Text Paragraph in JavaScript</p>
    <button type="button" onclick="changeStyle()">Click Me</button>
    <script>
    function changeStyle(){
        var element = document.getElementById("myPara");
        element.style.fontWeight = "bold";
    }
    </script>
</body>
</html>

Conclusion

In this JavaScript Tutorial, we learned how to change text in a paragraph to bold using JavaScript.