option property

The ECharts chart configuration option, represented as a string.

This controls the entire chart setup:

• When rawOption is false (default), this string must be valid JSON. Functions such as formatters are NOT allowed and should be represented as strings or static values.

  Example:

  EChartsWebView(
    option: '''
    {
      "tooltip": {
        "formatter": "{b}: {c}"
      },
      "xAxis": {
        "type": "category",
        "data": ["A", "B", "C"]
      },
      "yAxis": {},
      "series": [{
        "type": "bar",
        "data":[5]
      }]
    }
    ''',
  )
  

• When rawOption is true, the entire string is treated as a JavaScript object literal and can include inline JS functions (e.g., formatters). Be cautious and only use trusted input as this enables code execution.

  Example:

  EChartsWebView(
    rawOption: true,
    option: '''
    {
      tooltip: {
        formatter: function(params) {
          return params.name + ': ' + params.value;
        }
      },
      xAxis: {
        type: 'category',
        data: ['A', 'B', 'C']
      },
      yAxis: {},
      series: [{
        type: 'bar',
        data:[5]
      }]
    }
    ''',
  )