JavaScript – Change the Font Weight of Paragraph

To change the font weight of a paragraph using JavaScript, get the reference to the paragraph element, and assign the specific font weight value to the property.


<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
    <p id="myPara">Change the Font Weight of Paragraph in JavaScript</p>
    <button type="button" onclick="changeStyle()">Click Me</button>
    function changeStyle(){
        var element = document.getElementById("myPara"); = "600";
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In this JavaScript Tutorial, we learned how to change the font family of a paragraph using JavaScript.