Chartjs-Create chart in SPA(Aurelia) with MVVM pattern

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There are two places in VM: bind (data for the component are available) and attached (ready for DOM changes)

You can read more about component lifecycle here http://aurelia.io/hub.html#/doc/article/aurelia/framework/latest/creating-components/3

Also there is ref attribute that could be useful, when accessing the <canvas />

http://aurelia.io/hub.html#/doc/article/aurelia/binding/latest/binding-basics/5

Update: I have created own working example:

components/chartjs/chart.js

import {containerless} from 'aurelia-framework';
import ChartJs from 'chart.js'

@containerless()
export class Chart {

  container;

  constructor() {

  }

  attached() {


  this.myChart = new ChartJs(this.container, {
    type: 'bar',
    data: {
      labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
      datasets: [{
        label: '# of Votes',
        data: [12, 19, 3, 5, 2, 3],
        backgroundColor: [
          'rgba(255, 99, 132, 0.2)',
          'rgba(54, 162, 235, 0.2)',
          'rgba(255, 206, 86, 0.2)',
          'rgba(75, 192, 192, 0.2)',
          'rgba(153, 102, 255, 0.2)',
          'rgba(255, 159, 64, 0.2)'
        ],
        borderColor: [
          'rgba(255,99,132,1)',
          'rgba(54, 162, 235, 1)',
          'rgba(255, 206, 86, 1)',
          'rgba(75, 192, 192, 1)',
          'rgba(153, 102, 255, 1)',
          'rgba(255, 159, 64, 1)'
        ],
        borderWidth: 1
      }]
    },
    options: {
      scales: {
        yAxes: [{
          ticks: {
            beginAtZero: true
          }
        }]
      }
    }
  });


  }

}

components/chartjs/chart.html:

<template>
  <canvas ref="container" width="400" height="400"></canvas>
</template>

somewhere on page:

<require from="components/chartjs/chart"></require>
<chart></chart>

Note: this is just example, maybe you will need some optimizations, like checking and avoiding memory leaks if present when component is re-attached

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