Marusya's School Notes

Replacing String Content

The replace() method replaces a specified value with another value in a string:

str = "Please visit Microsoft!";
var n = str.replace("Microsoft","W3Schools");

HTML file:	Displayed by browser:
<body> <p>Replace "Microsoft" with "W3Schools" in the paragraph below:</p> <button onclick="myFunction()">Try it</button> <p id="demo">Please visit Microsoft!</p> <script> function myFunction() { var str = document.getElementById("demo").innerHTML; var txt = str.replace("Microsoft","W3Schools"); document.getElementById("demo").innerHTML = txt; } </script> </body>	Replace "Microsoft" with "W3Schools" in the paragraph below: Please visit Microsoft!

HTML file:

Displayed by browser:

<body>
<p>Replace "Microsoft" with "W3Schools" in the paragraph below:</p>
<button onclick="myFunction()">Try it</button>
<p id="demo">Please visit Microsoft!</p>
<script>
function myFunction() {
    var str = document.getElementById("demo").innerHTML;
    var txt = str.replace("Microsoft","W3Schools");
    document.getElementById("demo").innerHTML = txt;
}
</script>
</body>

Replace "Microsoft" with "W3Schools" in the paragraph below:

Please visit Microsoft!

The replace() method can also take a regular expression as the search value.