output string error / bad word possible in javascript [duplicate]

This question already has an answer here:

• Recursively print all permutations of a string (Javascript) 3 answers

Somebody help me please. I have silly and simple question about, take an example i have string, with the input data =

["tes"]

The main question is how to output the possibly string with the randomize data ?. Example output / expectation :

["tes", "ets", "est", "ste", "tse", "set"]

Thank you mr/mrs... im so blessed if you are helping me.. :)