How can I convert a string to Boolean in JavaScript?

Explanation

To convert a string to Boolean we will first learn what is a string and what is Boolean.

So the string is a collection of objects. And that objects can be of different types such as int, float. Boolean, long char, etc. And Boolean means we have a value in ‘ true’ or ‘ false’. When we have a value of anything in this two-term at that time that is called Boolean. So to convert string to Boolean we have to do the step that is shown below:

var isTrueSet = (myValue === 'true');

using the identity operator (===), which doesn’t make any implicit type conversions when the compared variables have different types.

And you should not use the statements as :

var myBool = Boolean("false");  // == true

var myBool = !!"false";  // == true

You should probably be cautious about using these two methods for your specific needs. 

Also read, What is the difference between call and apply?