javascript Google Chart API 中的数字类型不匹配
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Type mismatch for number in Google Chart API
提问by user3362533
I have an array and the second column with values like this 2050.878456and inside my javascript function to create a Area Chart I made the following
我有一个数组和第二列这样的值2050.878456，在我的 javascript 函数中创建了一个面积图我做了以下
function drawVisualization() {
var data = null;
data = new google.visualization.DataTable();
data.addColumn('string', 'Date');
data.addColumn('number', 'Value');
data.addRows(myArrayCreated);
// Create and draw the visualization.
var ac = new google.visualization.AreaChart(document
.getElementById('visualization_chart'));
ac.draw(data, {
title : 'Results',
isStacked : true,
width : 700,
height : 400,
vAxis : {title : "kW"},
hAxis : {title : "Day"}
});
}
however I get this error Type mismatch. Value 2050.878456 does not match type number in column index 1however it cannot be a string type as well, why do I get this error and how to fix it?
但是我收到此错误，Type mismatch. Value 2050.878456 does not match type number in column index 1但它也不能是字符串类型，为什么我会收到此错误以及如何修复它？
回答by Fr0zenFyr
Try passing the Valueas stringand then later do a parseFloat. Something like this:
尝试传递Valueasstring然后稍后执行parseFloat. 像这样的东西：
data.addColumn('string', 'Value');
for (var i=0;i<myArrayCreated.length;i++){
myVal = parseFloat($.trim(myArrayCreated[i][1]));
data.addRow([i, {v: myVal, f: myval.toFixed(6)}]);
}
回答by Martin Pfeffer
I spotted the same issue.
我发现了同样的问题。
not working:
不工作：
data.addRow([v, obd[v].engine_rpm]);
working:
在职的：
data.addRow([v, Number(obd[v].engine_rpm)]);
