how to create unique alphanumeric string using javascript

The toString() method returns a string representing the specified Number object, where the Number can range between 2 and 36.

The above example first gives a random number, like this 0.5962055277407441

This random number then parsed to a string using toString method which attempts to return a string representation in the specified radix (base). Here, we get a string like this “0.lgokcdetg2”

Now we take a substring of the above result.

ie; “0.lgokcdetg2”.substring(2, 15)

which results in lgokcdetg2

And, we can make even bigger strings by concatenating the same formula.

Method 2

This is a slight variation of Method 1