JavaScript Boolean toString() Method
Below is the example of Boolean toString() method.
- Example:
<script>
// Here Boolean object obj
// is created for the value 27
var
obj =
new
Boolean(27);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
- Output:
true
The boolean.toString() method is used to return a string either “true” or “false” depending upon the value of the specified boolean object.
Syntax:
boolean.toString()
Parameter: This method does not accept any parameter.
Return Values: It returns a string either “true” or “false” depending upon the value of the specified boolean object.
More codes for the above method are as follows:
- Example 1:
<script>
// Here Boolean object obj is
// created for the value true.
var
obj =
new
Boolean(
true
);
// Here boolean.toString() function
// is used for the created object obj.
document.write(obj.toString());
</script>
Output:
true
- Example 2:
<script>
// Here Boolean object obj is
// created for the value 1.
var
obj =
new
Boolean(1);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
Output:
true
- Example 3:
<script>
// Here Boolean object obj is
// created for the value -1.
var
obj =
new
Boolean(-1);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
Output:
true
- Example 4:
<script>
// Here Boolean object obj is
// created for the value 1.2
var
obj =
new
Boolean(1.2);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
Output:
true
- Example 5:
<script>
// Here Boolean object obj is created
// for the value as string "gfg"
var
obj =
new
Boolean(
"gfg"
);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
Output:
true
- Example 6:
<script>
// Here Boolean object obj is created
// for the value false.
var
obj =
new
Boolean(
false
);
// Here boolean.toString() function is
// used for the created object obj.
document.write(obj.toString());
</script>
Output:
false
Errors and Exceptions:
- Example 1: Here the value as geeksforgeeks gives error because this value is not defined only true and false has been predefined.
<script>
// Here Boolean object obj is created
// for the value geeksforgeeks.
var
obj =
new
Boolean(geeksforgeeks);
// Here boolean.toString() function is
// used for the created object obj.
console.log(obj.toString());
</script>
Output:
Error: geeksforgeeks is not defined
- Example 2: Here complex number can not be taken as the parameter only integer values and string can be taken as the parameter that is why it returns error.
<script>
// Here Boolean object obj is created for the
// value such as complex number 1+2i
var
obj =
new
Boolean(1 + 2i);
// Here boolean.toString() function is
// used for the created object obj.
console.log(obj.toString());
</script>
Output:
Error: Invalid or unexpected token
Supported Browsers: The browsers supported by JavaScript Boolean toString() Method are listed below:
- Google Chrome
- Internet Explorer
- Mozilla Firefox
- Safari
- Opera