我正在使用谷歌可视化，我正试图解决一些问题。 这对我来说似乎很简单，但我似乎无法找到适合Javascript的文档，也无法在Google文档中找到能够让我清楚知道如何执行此操作的文档。
现在我在我的js文件中有一个看起来像这样的函数：
function drawChart(raw,columns,options,chart) { var data = new google.visualization.arrayToDataTable(JSON.parse(raw)); var view = new google.visualization.DataView(data); view.setColumns(columns); chart.draw(view, options); }除了构造函数的一个讨厌的问题之外，它看起来很好
看一下函数的示例调用：
drawChart(grabarray("?warid="+warid+"&type=0"),[0, 1,{ calc: "stringify", sourceColumn: 1,type: "string",role: "annotation" },2], { title: "Attempted actions by player", },new google.visualization.BarChart(destination);（注意AJAX正在正常完成，但我剪切它以使示例更有意义）
正如您在上面所看到的，我被迫在javascript中直接使用以下行：
new google.visualization.BarChart(destination)当我想在我的AJAX回归中包含值“BarChart”时，我可以做这样的事情
new google.visualization("BarChart",destination)这将使我能够使用相同的drawChart函数调用创建其他谷歌可视化。
TL：DR，如何动态调用构造函数来实现：
new google.visualization("BarChart",destination) new google.visualization("PieChart",destination) new google.visualization("LineGraph",destination)I'm working with Google Visualizations and I'm trying to sort something out. This seems simple to me but I can't seem to find the right documentation for Javascript nor in the Google documentation that would give me a clear idea how to do this.
Right now I have a function in my js file that looks like this:
function drawChart(raw,columns,options,chart) { var data = new google.visualization.arrayToDataTable(JSON.parse(raw)); var view = new google.visualization.DataView(data); view.setColumns(columns); chart.draw(view, options); }Which looks well and good except for one pesky problem with the constructor
Take a look at an example call of the function:
drawChart(grabarray("?warid="+warid+"&type=0"),[0, 1,{ calc: "stringify", sourceColumn: 1,type: "string",role: "annotation" },2], { title: "Attempted actions by player", },new google.visualization.BarChart(destination);(Note AJAX is being done properly but I cut it to make the example make more sense)
As you can see above I'm forced to have the following line directly in the javascript:
new google.visualization.BarChart(destination)When I would like to just have the value "BarChart" included in my AJAX return so I could do something like this
new google.visualization("BarChart",destination)This would enable me to call create other google visualizations all using the same drawChart function.
TL:DR, how can I call a constructor dynamically to achieve this:
new google.visualization("BarChart",destination) new google.visualization("PieChart",destination) new google.visualization("LineGraph",destination)最满意答案
试试这样......
new google.visualization["BarChart"](destination)
try it like this...
new google.visualization["BarChart"](destination)
使用Google Visualizations动态调用构造函数？(Dynamically calling a constructor with Google Visualizations?)我正在使用谷歌可视化，我正试图解决一些问题。 这对我来说似乎很简单，但我似乎无法找到适合Javascript的文档，也无法在Google文档中找到能够让我清楚知道如何执行此操作的文档。
现在我在我的js文件中有一个看起来像这样的函数：
function drawChart(raw,columns,options,chart) { var data = new google.visualization.arrayToDataTable(JSON.parse(raw)); var view = new google.visualization.DataView(data); view.setColumns(columns); chart.draw(view, options); }除了构造函数的一个讨厌的问题之外，它看起来很好
看一下函数的示例调用：
drawChart(grabarray("?warid="+warid+"&type=0"),[0, 1,{ calc: "stringify", sourceColumn: 1,type: "string",role: "annotation" },2], { title: "Attempted actions by player", },new google.visualization.BarChart(destination);（注意AJAX正在正常完成，但我剪切它以使示例更有意义）
正如您在上面所看到的，我被迫在javascript中直接使用以下行：
new google.visualization.BarChart(destination)当我想在我的AJAX回归中包含值“BarChart”时，我可以做这样的事情
new google.visualization("BarChart",destination)这将使我能够使用相同的drawChart函数调用创建其他谷歌可视化。
TL：DR，如何动态调用构造函数来实现：
new google.visualization("BarChart",destination) new google.visualization("PieChart",destination) new google.visualization("LineGraph",destination)I'm working with Google Visualizations and I'm trying to sort something out. This seems simple to me but I can't seem to find the right documentation for Javascript nor in the Google documentation that would give me a clear idea how to do this.
Right now I have a function in my js file that looks like this:
function drawChart(raw,columns,options,chart) { var data = new google.visualization.arrayToDataTable(JSON.parse(raw)); var view = new google.visualization.DataView(data); view.setColumns(columns); chart.draw(view, options); }Which looks well and good except for one pesky problem with the constructor
Take a look at an example call of the function:
drawChart(grabarray("?warid="+warid+"&type=0"),[0, 1,{ calc: "stringify", sourceColumn: 1,type: "string",role: "annotation" },2], { title: "Attempted actions by player", },new google.visualization.BarChart(destination);(Note AJAX is being done properly but I cut it to make the example make more sense)
As you can see above I'm forced to have the following line directly in the javascript:
new google.visualization.BarChart(destination)When I would like to just have the value "BarChart" included in my AJAX return so I could do something like this
new google.visualization("BarChart",destination)This would enable me to call create other google visualizations all using the same drawChart function.
TL:DR, how can I call a constructor dynamically to achieve this:
new google.visualization("BarChart",destination) new google.visualization("PieChart",destination) new google.visualization("LineGraph",destination)最满意答案
试试这样......
new google.visualization["BarChart"](destination)
try it like this...
new google.visualization["BarChart"](destination)
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