toString()
method is used to get the string representation of any object. JavaScript
provides default implementation of toString method.
var arr1 =
[2, 3, 5, 7, 11];
document.write(arr1);
Above
statement prints the data like ‘2,3,5,7,11’ (write method calls the toString method of object internally).
It is
always good to define toString method for custom objects.
toString.html
<!DOCTYPE html> <html> <head> <title>toString Example</title> </head> <body> <script type="text/javascript"> var employee = { firstName: "Hari Krishna", lastName: "Gurram", id: 123, toString: function() { return "[firstName = " + this.firstName + ", lastName = " + this.lastName + ", id = " + this.id + "]"; } } document.write(employee); </script> </body> </html>
Open above
page in browser, you can able to see following message.
[firstName
= Hari Krishna, lastName = Gurram, id = 123]
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