JavaScript Error message Property

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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