Method constructor

front/components/mpvue-echarts/src/wx-canvas.js:2–9

(ctx, canvasId)

export default class WxCanvas {
  constructor(ctx, canvasId) {
    this.ctx = ctx;
    this.canvasId = canvasId;
    this.chart = null;

    WxCanvas.initStyle(ctx);
    this.initEvent();
  }

  getContext(contextType) {
    return contextType === '2d' ? this.ctx : null;