Javascript Can'；t使用wkhtmltopdf返回承诺后运行回调函数
我正在使用Javascript Can'；t使用wkhtmltopdf返回承诺后运行回调函数,javascript,google-visualization,javascript-objects,es6-promise,wkhtmltopdf,Javascript,Google Visualization,Javascript Objects,Es6 Promise,Wkhtmltopdf,我正在使用googlecharts创建折线图。然后将生成的html传递到windows中的wkhtmltopdf版本0.12.5（带补丁qt），这是一个用于将html页面转换为PDF的shell实用程序 wkhtmltopdf使用旧版本的webkit（浏览器引擎）来执行javascript代码，因此除了不支持其他ES6功能外，它还将Promise视为普通的对象 现在是问题 JS代码[main.JS]： 1. google.load("visualization", "1", { packages
googlechartswkhtmltopdfwebkitPromise对象
现在是问题
JS代码[main.JS]：
1. google.load("visualization", "1", { packages: ["corechart"] });
2. google.setOnLoadCallback(function () {
3. drawChart();
4. });
5. function drawChart() {
6. var data = google.visualization.arrayToDataTable(
7. [
8. // some data
9. ]
10. );
11. var options = {
12 // some options
13. };
14. var chart = new google.visualization.LineChart(
15. document.getElementById("node_chart_div1") // a div element in html
16. );
17. chart.draw(data, options);
18. }
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Line Chart</title>
<script
src="https://code.jquery.com/jquery-3.5.0.js"
integrity="sha256-r/AaFHrszJtwpe+tHyNi/XCfMxYpbsRg2Uqn0x3s2zc="
crossorigin="anonymous"
></script>
<script
type="text/javascript"
src="https://www.gstatic.com/charts/loader.js"
></script>
</head>
<body>
<div id="test"></div>
<div id="node_chart_div1" class="cellchart"></div>
</body>
<script src="main.js"></script>
</html>
HTML代码：
1. google.load("visualization", "1", { packages: ["corechart"] });
2. google.setOnLoadCallback(function () {
3. drawChart();
4. });
5. function drawChart() {
6. var data = google.visualization.arrayToDataTable(
7. [
8. // some data
9. ]
10. );
11. var options = {
12 // some options
13. };
14. var chart = new google.visualization.LineChart(
15. document.getElementById("node_chart_div1") // a div element in html
16. );
17. chart.draw(data, options);
18. }
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Line Chart</title>
<script
src="https://code.jquery.com/jquery-3.5.0.js"
integrity="sha256-r/AaFHrszJtwpe+tHyNi/XCfMxYpbsRg2Uqn0x3s2zc="
crossorigin="anonymous"
></script>
<script
type="text/javascript"
src="https://www.gstatic.com/charts/loader.js"
></script>
</head>
<body>
<div id="test"></div>
<div id="node_chart_div1" class="cellchart"></div>
</body>
<script src="main.js"></script>
</html>
在链接上找到上述代码的实时演示
非常感谢您的任何帮助/建议