Question

这是我的代码。（对不起丑陋的json数据）

var data = 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        data[0].ImageSets[0].ImageSet.forEach((image) => {
            var images = image.LargeImage[0].URL[0]
            console.log(images)
        })

我在控制台日志中得到所有URL。

我尝试将它们与split()合并，但无法正常工作。每个字符串都有自己的数组。同样，如果我使用var images = image.LargeImage[0].URL。每个字符串都返回其自己的数组。

我想要的是一个具有所有URL的单个数组。

["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL.jpg", "https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL.jpg", "https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL.jpg", "https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL.jpg", "https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL.jpg", "https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL.jpg","https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL.jpg"]

谢谢。

Answer 1

在这里仅使用.map()更有意义，因为它将使用每次迭代的返回值创建一个新的数组

var data=[{ImageSets:[{ImageSet:[{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41NeQS3RMzL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/81OWhCeCRtL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/316W1tHrMuL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/71e4eChoGzL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/31TgrPVXYjL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/71qsXsLLRWL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/51qcfjgaAZL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/91hyvNK4stL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41numbb3sgL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/816DOkjvgKL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"variant"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41PLx0E2sqL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/819xXjN-ghL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]},{$:{Category:"primary"},SwatchImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL._SL30_.jpg"],Height:[{_:"30",$:{Units:"pixels"}}],Width:[{_:"30",$:{Units:"pixels"}}]}],SmallImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],ThumbnailImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL._SL75_.jpg"],Height:[{_:"75",$:{Units:"pixels"}}],Width:[{_:"75",$:{Units:"pixels"}}]}],TinyImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL._SL110_.jpg"],Height:[{_:"110",$:{Units:"pixels"}}],Width:[{_:"110",$:{Units:"pixels"}}]}],MediumImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL._SL160_.jpg"],Height:[{_:"160",$:{Units:"pixels"}}],Width:[{_:"160",$:{Units:"pixels"}}]}],LargeImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/41bz4b5IbLL.jpg"],Height:[{_:"500",$:{Units:"pixels"}}],Width:[{_:"500",$:{Units:"pixels"}}]}],HiResImage:[{URL:["https://images-na.ssl-images-amazon.com/images/I/71-w1EWOaWL.jpg"],Height:[{_:"2560",$:{Units:"pixels"}}],Width:[{_:"2560",$:{Units:"pixels"}}]}]}]}]}];

let urlsArray = data[0].ImageSets[0].ImageSet.map((image) => {
  return image.LargeImage[0].URL[0];
});

console.log(urlsArray);

此外，这就是您使用.forEach()的方式

var 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let urlsArray = [];
data[0].ImageSets[0].ImageSet.map((image) => {
  urlsArray.push(image.LargeImage[0].URL[0]);
});

console.log(urlsArray);

如何将字符串从forEach循环合并到数组

1 个答案: