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

My Personal Notes

Recommended Posts: