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JavaScript Error message Property

Last Updated : 08 Feb, 2023
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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: 

Below is the example of the Error message property.

Example 1: 

JavaScript 
try {
    allert("A computer science portal");
}
catch(err) {
    document.write(err.message);
}

Output:

allert is not defined

Example 2: This example does not contains any error so it does not display error message. 

html 
<!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 3: This example displays an error message when use misspelled 'alert' statement. 

html 
<!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

R

riarawal99
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