train-model.js

const trainModel = data => {
  let weights = getRandomWeights();
  let bias = getRandomBias();

  for (let i = 0; i < 50000; i++) {
    const randomIndex = getRandomIndex(data.length);

    const input = getInput(data, randomIndex);
    const target = getTarget(input);

    const weightedSum = getWeightedInputSum(weights, input, bias);
    
    ...
    ...
    ...