Google App脚本-映射时发生错误-TypeError:无法读取未定义的属性"map" [英] Google App Script - Error when Mapping - TypeError: Cannot read property 'map' of undefined

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本文介绍了Google App脚本-映射时发生错误-TypeError:无法读取未定义的属性"map"的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

在社区的指导下，我最近学会了

With the guidance of the community I've recently learned here about BatchUpdating background colors of a given google sheet.

我尝试将其应用于我的实际工作表，但遇到错误代码. TypeError: Cannot read property 'map' of undefined

I've attempted to apply this to my actual sheet but run into the error code. TypeError: Cannot read property 'map' of undefined

我的测试表中没有问题的代码在这里:

The code in my test sheet which works without issue is here:

var TestArray = Sheets.Spreadsheets.get("1eAq-RbtrCSMRPZ0p7XIpG3vd29yL-3SQ3D3JGyiUhKg", {
   ranges:"TestBackgroundSheet!A1:AD39", fields:"sheets(data(rowData(values(effectiveFormat.backgroundColor))))"
 });
 
 var backgroundColors = TestArray["sheets"][0]["data"][0]["rowData"]
                      .map(row => row["values"]
                      .map(value => value["effectiveFormat"]["backgroundColor"]));

然后我将这段代码复制并粘贴到我的实际项目中.为了排除故障，我什至将确切的工作表从测试项目复制到了实际项目中.代码在这里列出:

I then copied and pasted this code into my actual project. In an attempt to troubleshoot I even copied the exact Sheet from my test project into the actual project. The code is listed here:

var TestArray = Sheets.Spreadsheets.get("1pcIKNUFmkk0d-UGg1sXl5xbsJC2WhocIHpM3et-CMgo", {
   ranges:"TestBackgroundSheet!A1:AD39", fields:"sheets(data(rowData(values(effectiveFormat.backgroundColor))))"
 });
 
 var backgroundColors = TestArray["sheets"][0]["data"][0]["rowData"]
                      .map(row => row["values"]
                      .map(value => value["effectiveFormat"]["backgroundColor"]));

您可以看到，除了不同的SheetID之外，代码完全相同.尽管如此，我仍然收到TypeError: Cannot read property 'map' of undefined错误.

As you can see the code is exactly the same except for a different SheetID. Despite this i continue to get the TypeError: Cannot read property 'map' of undefined Error.

错误代码引用的行172是.map(value => value["effectiveFormat"]["backgroundColor"]));

The error code references line 172 which is .map(value => value["effectiveFormat"]["backgroundColor"]));

编辑#2:

包含Rafa的代码后，我得到此错误代码-> SyntaxError:意外的令牌，位于JSON的位置1(第177行，文件宏")

With inclusion of Rafa's Code I get this error code -> SyntaxError: Unexpected token , in JSON at position 1 (line 177, file "macros")

包含的代码如下.

var TestArray = Sheets.Spreadsheets.get("1pcIKNUFmkk0d-UGg1sXl5xbsJC2WhocIHpM3et-CMgo", {
      ranges:"TestBackgroundSheet!A1:AD39",
      fields:"sheets(data(rowData(values(effectiveFormat.backgroundColor))))"
    });
     
    var rowData = TestArray["sheets"][0]["data"][0]["rowData"]
    .map(row => row.getValues()).toString()
    
    var backgroundColors = JSON.parse("[" + rowData + "]")
    .map(value => {
         let v = value["effectiveFormat"]
         return v ? v["backgroundColor"] : null
         })

编辑#3:

具有以下代码的RowData记录器

Logger of RowData with below code

for (var x = 0; x < 40; x++) {
      Logger.log(x + JSON.stringify(TestArray["sheets"][0]["data"][0]["rowData"][x]));
    }

我可以看到问题出在Logger语句的前四行.而测试表"中的空行则返回白色背景颜色的完整行(RGB {绿色":1，红色":1，蓝色":1}).我在前4行中的3行中得到了一个空对象.我在下面包括了输出的前四行.我不确定为什么会这样.

I can see the issue is in the first four lines of Logger statements. While the empty rows in the "Testing Sheet" returns full rows of White background color (RGB {"green":1,"red":1,"blue":1}) In the "Reat Sheet" I get an empty object for 3 of the first 4 lines. I've include the first four lines out output below. I'm not sure why this occurs.

实际:

[20-10-21 08:53:23:591 EDT] 0{}
[20-10-21 08:53:23:593 EDT] 1{"values":[{},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}}]}
[20-10-21 08:53:23:595 EDT] 2{}
[20-10-21 08:53:23:597 EDT] 3{}
[20-10-21 08:53:23:600 EDT] 4{"values":[{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}}]}

测试:

[20-10-21 05:53:14:167 PDT] 0{"values":[{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}}]}
[20-10-21 05:53:14:170 PDT] 1{"values":[{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}}]}
[20-10-21 05:53:14:193 PDT] 2{"values":[{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}}]}
[20-10-21 05:53:14:195 PDT] 3{"values":[{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}}]}
[20-10-21 05:53:14:198 PDT] 4{"values":[{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"blue":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"blue":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"red":1,"green":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"green":1,"red":1,"blue":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"red":1,"green":1}}},{"effectiveFormat":{"backgroundColor":{"blue":1,"green":1,"red":1}}}]}

推荐答案

答案:

并非row["values"]的所有元素都具有数据-因此，当该行没有数据时，您将无法运行.map(value => value["effectiveFormat"]["backgroundColor"]).

Answer:

Not all elements of row["values"] have data - and so you can't run .map(value => value["effectiveFormat"]["backgroundColor"]) when that row doesn't have data.

您已经使用以下方法从API获取数据

You've got your data from the API using

Sheets.Spreadsheets.get("1eAq-RbtrCSMRPZ0p7XIpG3vd29yL-3SQ3D3JGyiUhKg")

，并使用您的场遮罩对其进行相应过滤.您作为响应而获得的数据将是工作表中的所有内容-甚至是没有背景色数据的单元格.结果，您不能像这样映射每一行，因为您将尝试引用effectiveFormat元素，而该元素根本不存在.

and filtered it accordingly with your field mask. The data you get as a response will be everything in the sheet - even the cells that do not have data for background colour. As a result of this, you can not map each row like this, as you will try and reference the effectiveFormat element where it simply doesn't exist.

您可以使用三元运算符解决此问题；如果元素value["effectiveFormat"]不存在，则可以简单地返回null:

You can use the ternary operator to solve this; if the element value["effectiveFormat"] doesn't exist you can simply return null:

var rowData = TestArray["sheets"][0]["data"][0]["rowData"]
    .map(row => row.getValues()).toString()

var backgroundColors = JSON.parse("[" + rowData + "]")
    .map(value => {
        let v = value["effectiveFormat"]
        return v ? v["backgroundColor"] : null
    })

注意::API还会在响应中的JSON对象中返回函数，您可以在Apps脚本中使用这些函数.这很方便，因为直接引用row["values"]可以返回对象而不是数据:

NB: The API also returns functions within the JSON objects in the response which you can use in Apps Script. This comes in handy because referencing row["values"] directly can return the object rather than the data:

console.log(TestArray["sheets"][0]["data"][0]["rowData"]
            .map(row => row["values"]))

产量:

[ 
  { 
    setPivotTable: [Function],
    getDataSourceTable: [Function],
    getDataValidation: [Function],
    getEffectiveValue: [Function],
    setNote: [Function],
    setFormattedValue: [Function],
    getTextFormatRuns: [Function],
    setUserEnteredFormat: [Function],
    toString: [Function],
    getFormattedValue: [Function],
    setEffectiveFormat: [Function],
    effectiveFormat: [Object],
    setDataSourceFormula: [Function],
    getPivotTable: [Function],
    setUserEnteredValue: [Function],
    setDataValidation: [Function],
    setDataSourceTable: [Function],
    getUserEnteredFormat: [Function],
    setEffectiveValue: [Function],
    getEffectiveFormat: [Function],
    getHyperlink: [Function],
    getNote: [Function],
    setHyperlink: [Function],
    getUserEnteredValue: [Function],
    setTextFormatRuns: [Function],
    getDataSourceFormula: [Function] 
  },
  ...
]

第一个.map(row => row.getValues())之后的toString()调用超出了此范围，然后将数据放回到第二个映射函数中.

The toString() call after the first .map(row => row.getValues()) gets past this before putting the data back into the second mapping function.

希望对您有帮助！

这篇关于Google App脚本-映射时发生错误-TypeError:无法读取未定义的属性"map"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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