[Solved]-why the main and axis title does not show in chart.js-Chart.js

first of all don't use an array for your x scales, all the scales need to be defined as objects. second you are placing the options in the wrong part, it has to be configured in the title namespace like so:

scales: {
  y: {
    title: {
      display: true,
      text: 'ytitle'
    }
  },
 x: {
    title: {
      display: true,
      text: 'xtitle'
    }
  }
}