Re: [I] [Improvement] Canvas willReadFrequently warning. [echarts]

["learntimes (via GitHub)" <gi...@apache.org>]

learntimes commented on issue #18199:
URL: https://github.com/apache/echarts/issues/18199#issuecomment-2065613418

   // Temporarily override getContext method to set willReadFrequently
   // Use this method with caution to ensure it does not interfere with other parts of your application.
   const originalGetContext = HTMLCanvasElement.prototype.getContext
   HTMLCanvasElement.prototype.getContext = function (type, attributes) {
     if (type === '2d') {
       attributes = { ...attributes, willReadFrequently: true }
     }
     return originalGetContext.call(this, type, attributes)
   }
   
   mChart = echarts.init(target.value)
   
   // Restore the getContext method after initialization to avoid affecting other canvas elements on the page.
   // Use setTimeout to ensure that ECharts initialization has completed
   setTimeout(() => {
     HTMLCanvasElement.prototype.getContext = originalGetContext
   }, 1000) // Restore after a delay of 1000 milliseconds, adjust based on actual situation


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