JavaScript | Error.prototype.toString() Method

The Error.prototype.toString() method is an inbuilt method in JavaScript which is used to returns a string representing the specified Error object.

Syntax:

e.toString()

Parameters: This method does not accept any parameters.

Return value: This method returns a string representing the specified Error object.

Below examples illustrate the Error.prototype.toString() Method in JavaScript:



Example 1:

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var geeks1 = new Error();
document.writeln(geeks1.toString()); 
document.writeln("<br>");
   
geeks1.name = undefined;
document.writeln(geeks1.toString()); 
document.writeln("<br>");
  
geeks1.name = 'GeeksForGeeks';
document.writeln(geeks1.toString());

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Output:


Error
Error
GeeksForGeeks



Example 2:













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var geeks = new Error('Error.prototype.toString()'); 


document.writeln(geeks.toString());  


document.writeln("<br>"); 


   


geeks.name = undefined; 


document.writeln(geeks.toString());  


document.writeln("<br>"); 


   


geeks.name = ''; 


document.writeln(geeks.toString());  


document.writeln("<br>"); 


   


geeks.message = "Error Type"; 


document.writeln(geeks.toString()); 


document.writeln("<br>"); 


   


geeks.message = undefined; 


document.writeln(geeks.toString()); 


document.writeln("<br>"); 


   


geeks.name = 'GeeksForGeeks'; 


document.writeln(geeks.toString()); 



















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Output:


Error: Error.prototype.toString()
Error: Error.prototype.toString()
Error.prototype.toString()
Error Type

GeeksForGeeks


Supported Browsers: The browsers supported by Error.prototype.toString() Method are listed below:


    

  • Google Chrome
    • 

  • Firefox
    • 

  • Edge
    • 



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