javascript bogo sort attempt

    generateIndexArray(array){
        let indexArray = []
        for (let i = 0; i < array.length; i++){
            indexArray[i] = i;
        }
        return indexArray;
    }

    convertIndexArray(indexArray){
        let newArray = [];
        for (let i = 0; i < indexArray.length; i++){
            let index = indexArray[i];
            newArray[i] = array[index];
        }
        return newArray;
    }

    generatePermutations(config, arr){
      if(config.length === arr.length){
        this.permutations.push(this.convertIndexArray(config));
      }else{
        for (let i = 0; i < arr.length; i++){
          if (!config.includes(arr[i])){
            config.push(arr[i]);
            this.generatePermutations(config, arr);
            config.pop();
          }
        }
      }
    }