JavaScript Error message Property

Last Updated : 03 Jul, 2020

Below is the example of the Error message property.

Example:

<script>
    try {
         allert("A computer science portal");
        }
     catch(err) {
         document.write(err.message);
        }
</script>
Output:
```
allert is not defined
```

In JavaScript error message property is used to set or return the error message.

Syntax:

errorObj.message

Return Value: It returns a string, representing the details of the error.

More example codes for the above property are as follows:

Example 1: This example does not contains any error so it does not display error message.

<!DOCTYPE html>
<html>
    <body style="text-align: center;">
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
  
        <h3>
            JavaScript Error Message Property
        </h3>
  
        <p id="gfg"></p>
  
        <script>
            try {
                alert("A computer science portal");
            }
            catch(err) {
                document.getElementById("gfg").innerHTML
                        = err.message;
            }
    </script>
    </body>
</html>                    

Output:

Example 2: This example displays an error message when use misspelled ‘alert’ statement.

<!DOCTYPE html>
<html>
    <body style="text-align: center;">
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
  
        <h3>
            JavaScript Error Message Property
        </h3>
  
        <p id="gfg"></p>
  
        <script>
            try {
                popup("A computer science portal");
            }
            catch(err) {
                document.getElementById("gfg").innerHTML
                        = err.message;
            }
        </script>
    </body>
</html>                         

Output:

Supported Browsers: The browser supported by JavaScript Error Message Property are listed below:

Google Chrome
Firefox
Internet Explorer
Opera
Safari

My Personal Notes

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