simple alphanumeric string generator
npm install alphanumeric-random-string-generatorSimple generator.
Input: length (integer)
Output: random alphanumeric string (null if not an integer as input)
``
const alphanumericRandom = require('alphanumeric-random-string-generator');
alphanumericRandom(); //null
alphanumericRandom("hello"); //null
alphanumericRandom(3); //3Ke
``