add file saver lib

benchmarking/src/components/chart.js

@@ -2,8 +2,7 @@ import React from 'react'
 import { Line, Bar } from 'react-chartjs-2'
 import debounceRender from 'react-debounce-render'
 import platform from 'platform'
-
+import { saveAs } from 'file-saver'
-import { downloadAsJson } from '../../../lib/json-download/index.js'
 
 import { datasetNames } from '../data/index.js'
 import { datasetTemplates, genOptions, beautifyLabels } from './chartOptions.js'
@@ -202,7 +201,7 @@ function saveChart(chartRef) {
   let config = JSON.stringify(myChart, (key, val) =>
     key === '_meta' ? undefined : val
   )
-  downloadAsJson(config, 'config.json')
+  saveAs(new Blob([config]), 'config.json', { type: 'text/json;charset=utf8' })
 }
 
 /**

lib/json-download/index.js

@@ -1,15 +0,0 @@
-/*
-Taken from: https://stackoverflow.com/questions/19721439/download-json-object-as-a-file-from-browser
-*/
-
-export function downloadAsJson(exportObj, exportName) {
-  if (typeof exportObj !== 'string') exportObj = JSON.stringify(exportObj)
-  var dataStr =
-    'data:application/json;charset=utf-8,' + encodeURIComponent(exportObj)
-  var downloadAnchorNode = document.createElement('a')
-  downloadAnchorNode.setAttribute('href', dataStr)
-  downloadAnchorNode.setAttribute('download', exportName)
-  document.body.appendChild(downloadAnchorNode) // required for firefox
-  downloadAnchorNode.click()
-  downloadAnchorNode.remove()
-}