折线图渲染后的回调

Question

I implement charts 2 libraries in my project. it's working well. I want to show an alert message after the line chart rendered completely. is there any callback function or anything else? how can I show a message after the line chart displayed?

I want to do like before chart render showing loader at the end displayed chart I want to hide that loader.

Answer 1

You can use onComplete callback function of animation. This will be called after the chart (animation) is completely rendered.

options: {
   animation: {
      onComplete: function() {
         alert('Line Chart Rendered Completely!');
      }
   },
   ...
}

Answer 2

if you want to run your logic only for one time after render,

options: {
   animation: {
      onComplete: function(chart) {
      if(chart.initial){
         alert('do something here only for one time after render');
      }

      }
   },
   ...
}