我正在尝试将 div id 作为参数传递给 document.getElementById()。
我尝试使用以下功能，但仍然无法正常工作。
function getID(Element_ID) {
var el = document.getElementById(Element_ID);
el.style.visibility = "visible";
if(el.style.display == "none" ) {
el.style.display = "inline";
}
else {
el.style.display = "visible";
}
return el;//in case you want to use the element
}
代码:
<html>
<head>
<title>Google Charts Tutorial</title>
<script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type = "text/javascript">
google.charts.load('current', {packages: ['corechart']});
</script>
<script language = "JavaScript">
function drawChart(DivID){
// Define the chart to be drawn.
var data = google.visualization.arrayToDataTable([
['Status', 'Outcome', { role: 'style' }],
['Executed - 70', 70,'green'],
['Not Executed 5', 5,'red']
]);
var groupData = google.visualization.data.group(
data,
[{column: 0, modifier: function () {return 'total'}, type:'string'}],
[{column: 1, aggregation: google.visualization.data.sum, type: 'number'}]
);
var formatPercent = new google.visualization.NumberFormat({
pattern: '#,##0.0%'
});
var formatShort = new google.visualization.NumberFormat({
pattern: 'short'
});
var view = new google.visualization.DataView(data);
view.setColumns([0, 1, 2,{
calc: function (dt, row) {
var amount = formatShort.formatValue(dt.getValue(row, 1));
var percent = formatPercent.formatValue(dt.getValue(row, 1) / groupData.getValue(0, 1));
return amount + ' (' + percent + ')';
},
type: 'string',
role: 'annotation'
}]);
var options = { title: 'Coveo (700341)', 'legend':'none'};
var chart = new google.visualization.ColumnChart(document.getElementById(DivID));
chart.draw(view, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</head>
<body>
<table border='1px' cellpadding='5' cellspacing='0' style='border: solid 1px Silver; font-size: x-small;width: 100%'>
<tr align='center' valign='top'>
<td align='center' style='width:100px' valign='center' bgcolor='white'>
<div id="container1" style="width:400; height:280"></div>
<script type="text/javascript">
drawChart('container1');
</script>
</td>
</tr>
</table>
</body>
</html>
当我将 document.getElementById(DivID) 更改为 document.getElementById('container1') 时它起作用。还尝试将 google.charts.setOnLoadCallback(drawChart) 更改为 google.charts.setOnLoadCallback(drawChart('container1'))。一点运气都没有。
最佳答案
回调函数不会传递任何参数，
改用匿名函数......
google.charts.setOnLoadCallback(function () {
drawChart('container1');
});
关于javascript - 将参数传递给 'document.getElementById'，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57992969/