Overwrite variable content javascript

Question

If you have a variable set with sensitive data:

var secretPassword = \'myPa$sW0rd\';

and you overwrite it:

secretPassword = \'0         


        

Answer 1

Try to use an array of fixed size and assign 0 values to all elements on clean-up. This does not reallocate a new object.

However, it will be difficult to control where the value is passed around once you use it as a string.