Data parsing

test.js

let data = [
  ['356.0','Ailment_6','sleep pain back','food concentrate'],
  ['356.0','Ailment_2','sick feel','food healthy'],
  ['356.0','Ailment_10','cramps eyes', 'ibuprofen'],
  ['357.0','Ailment_4','back sick knee', 'biking eat'],
  ['357.0','Ailment_6','sick joint', 'juice nutrient'],
  ['357.0','Ailment_8','hurt heart', 'ibuprofen']
].reduce( (memo, item) => {
  console.log(item);
  const [ state, ailment, symptoms, treatments ] = item;
  
  let data = memo[parseInt(state)];
  
  if (!data) {
    data = memo[parseInt(state)] = [];
  }
  
  data.push(`Ailment: ${ailment}`)
  data.push(`Symptoms: ${symptoms}`)
  data.push(`Treatments: ${treatments}`)
  
  return memo;
}, {});


console.log(data);

/**

{
  "356":["Ailment: Ailment_6","Symptoms: sleep pain back","Treatments: food concentrate","Ailment: Ailment_2","Symptoms: sick feel","Treatments: food healthy","Ailment: Ailment_10","Symptoms: cramps eyes","Treatments: ibuprofen"],
  "357":["Ailment: Ailment_4","Symptoms: back sick knee","Treatments: biking eat","Ailment: Ailment_6","Symptoms: sick joint","Treatments: juice nutrient","Ailment: Ailment_8","Symptoms: hurt heart","Treatments: ibuprofen"]}
}

*/