Question

我正在尝试在javascript文件中创建一个amchart图表。然而，每当我尝试在我的控制台中创建图表时，我都会收到此错误：ReferenceError：AmCharts未定义。当我尝试创建相同的图表但这次在脚本标记中的HTML文件内时，图表工作正常。继承人js文件代码：

var chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "none",
    "dataProvider": [{
        "country": "USA",
        "visits": 2025
    }, {
        "country": "China",
        "visits": 1882
    }, {
        "country": "Japan",
        "visits": 1809
    }, {
        "country": "Germany",
        "visits": 1322
    }, {
        "country": "UK",
        "visits": 1122
    }, {
        "country": "France",
        "visits": 1114
    }, {
        "country": "India",
        "visits": 984
    }, {
        "country": "Spain",
        "visits": 711
    }, {
        "country": "Netherlands",
        "visits": 665
    }, {
        "country": "Russia",
        "visits": 580
    }, {
        "country": "South Korea",
        "visits": 443
    }, {
        "country": "Canada",
        "visits": 441
    }, {
        "country": "Brazil",
        "visits": 395
    }],
    "valueAxes": [{
        "gridColor":"#FFFFFF",
        "gridAlpha": 0.2,
        "dashLength": 0
    }],
    "gridAboveGraphs": true,
    "startDuration": 1,
    "graphs": [{
        "balloonText": "[[category]]: <b>[[value]]</b>",
        "fillAlphas": 0.8,
        "lineAlpha": 0.2,
        "type": "column",
        "valueField": "visits"      
    }],
    "chartCursor": {
        "categoryBalloonEnabled": false,
        "cursorAlpha": 0,
        "zoomable": false
    },
    "categoryField": "country",
    "categoryAxis": {
        "gridPosition": "start",
        "gridAlpha": 0
    },
    "exportConfig":{
      "menuTop": 0,
      "menuItems": [{
      "icon": '/lib/3/images/export.png',
      "format": 'png'     
      }]  
    }
});

在我的html中有一个简单的div标签。

 <div id="chartDiv"></div>

继承人工作的html文件：

<html>
<body>
    <div id="chartdiv" style="width: 640px; height: 400px;"></div>
    <script src="js/amcharts/amcharts/amcharts.js" type="text/javascript"></script>
    <script src="js/amcharts/amcharts/serial.js" type="text/javascript"></script>
    <script type="text/javascript">

        var chart = AmCharts.makeChart("chartdiv", {
    "type": "serial",
    "theme": "none",
    "dataProvider": [{
        "country": "USA",
        "visits": 2025
    }, {
        "country": "China",
        "visits": 1882
    }, {
        "country": "Japan",
        "visits": 1809
    }, {
        "country": "Germany",
        "visits": 1322
    }, {
        "country": "UK",
        "visits": 1122
    }, {
        "country": "France",
        "visits": 1114
    }, {
        "country": "India",
        "visits": 984
    }, {
        "country": "Spain",
        "visits": 711
    }, {
        "country": "Netherlands",
        "visits": 665
    }, {
        "country": "Russia",
        "visits": 580
    }, {
        "country": "South Korea",
        "visits": 443
    }, {
        "country": "Canada",
        "visits": 441
    }, {
        "country": "Brazil",
        "visits": 395
    }],
    "valueAxes": [{
        "gridColor":"#FFFFFF",
        "gridAlpha": 0.2,
        "dashLength": 0
    }],
    "gridAboveGraphs": true,
    "startDuration": 1,
    "graphs": [{
        "balloonText": "[[category]]: <b>[[value]]</b>",
        "fillAlphas": 0.8,
        "lineAlpha": 0.2,
        "type": "column",
        "valueField": "visits"      
    }],
    "chartCursor": {
        "categoryBalloonEnabled": false,
        "cursorAlpha": 0,
        "zoomable": false
    },
    "categoryField": "country",
    "categoryAxis": {
        "gridPosition": "start",
        "gridAlpha": 0
    },
    "exportConfig":{
      "menuTop": 0,
      "menuItems": [{
      "icon": '/lib/3/images/export.png',
      "format": 'png'     
      }]  
    }
});

    </script>
</body>
</html>

两个文件的脚本定义完全相同。 js文件中是否需要特殊的include或其他内容？因为jquery对我来说很好。

有人可以解释我如何从我的js文件中调用amcharts吗？

由于

Answer 1

当您将代码放在单独的文件中时，是否确保将其脚本标记放在amcharts脚本标记下？

您的代码在html中出现的顺序很重要 - 如果您尝试在amcharts脚本之前运行脚本（通过将其标记放在amcharts标记上方），浏览器仍然无法加载amcharts等等将引发参考错误。

假设您为脚本命名，您的html应该如下所示：

<script src="js/amcharts/amcharts/amcharts.js" type="text/javascript"></script>
<script src="js/amcharts/amcharts/serial.js" type="text/javascript"></script>
<script src="js/myScript.js" type="text/javascript"></script>

然而，如果您按此顺序处理了某些内容，则不工作 - 您将收到引用错误。

<script src="js/myScript.js" type="text/javascript"></script>
<script src="js/amcharts/amcharts/amcharts.js" type="text/javascript"></script>
<script src="js/amcharts/amcharts/serial.js" type="text/javascript"></script>

Amsrts在js文件中未定义

1 个答案: