I am integrating varientform.i have recieving array of object in state.but when im trying to submit data so im getting this kind of data in console

varientDetails: [
    '{"index":0.2731402713862625,"sort":"45","sku":"5","waightorquantity":"1","Unit":"","mrp":"","discount":"","price":"","stock":"","minstock":"","outofstock":""}'
  ]

im using this code......

varientDetails.forEach(varient =>{formData.append(`varientDetails[]`,JSON.stringify(varient))})