获取嵌套在 JSON 中的文本

Question

我学习JSON一周了。当我尝试使用认知服务时，它向输出返回 JSON 格式。用户看起来很复杂。所以我只想把它的一些属性显示在屏幕上。但是当我尝试访问其中的嵌套属性时，即使使用逗号或括号，它仍然不起作用！我只想取出 "text" 属性并将其添加到字符串中。

{
  "language": "en",
  "orientation": "Up",
  "textAngle": 0,
  "regions": [
    {
      "boundingBox": "12,106,781,327",
      "lines": [
        {
          "boundingBox": "52,106,230,35",
          "words": [
            {
              "boundingBox": "52,108,44,33",
              "text": "60"
            },
            {
              "boundingBox": "110,106,172,35",
              "text": "Beautiful"
            }
          ]
        },
        {
          "boundingBox": "29,166,276,42",
          "words": [
            {
              "boundingBox": "29,166,99,35",
              "text": "Good"
            },
            {
              "boundingBox": "141,166,164,42",
              "text": "Morning"
            }
          ]
        },
        {
          "boundingBox": "99,229,134,39",
          "words": [
            {
              "boundingBox": "99,229,134,39",
              "text": "Images"
            }
          ]
        },
        {
          "boundingBox": "12,301,308,26",
          "words": [
            {
              "boundingBox": "12,304,20,16",
              "text": "to"
            },
            {
              "boundingBox": "38,302,52,17",
              "text": "make"
            },
            {
              "boundingBox": "96,307,44,20",
              "text": "ypur"
            },
            {
              "boundingBox": "145,301,80,18",
              "text": "timeline"
            },
            {
              "boundingBox": "231,307,89,12",
              "text": "awesome"
            }
          ]
        },
        {
          "boundingBox": "589,417,204,16",
          "words": [
            {
              "boundingBox": "589,417,204,16",
              "text": "www.birthdaywishes.expert"
            }
          ]
        }
      ]
    }
  ]
}

Answer 1

您可以使用 map() 来展平对象并从中打印文本。

var obj = {


"language": "en",
  "orientation": "Up",
  "textAngle": 0,
  "regions": [
    {
      "boundingBox": "12,106,781,327",
      "lines": [
        {
          "boundingBox": "52,106,230,35",
          "words": [
            {
              "boundingBox": "52,108,44,33",
              "text": "60"
            },
            {
              "boundingBox": "110,106,172,35",
              "text": "Beautiful"
            }
          ]
        },
        {
          "boundingBox": "29,166,276,42",
          "words": [
            {
              "boundingBox": "29,166,99,35",
              "text": "Good"
            },
            {
              "boundingBox": "141,166,164,42",
              "text": "Morning"
            }
          ]
        },
        {
          "boundingBox": "99,229,134,39",
          "words": [
            {
              "boundingBox": "99,229,134,39",
              "text": "Images"
            }
          ]
        },
        {
          "boundingBox": "12,301,308,26",
          "words": [
            {
              "boundingBox": "12,304,20,16",
              "text": "to"
            },
            {
              "boundingBox": "38,302,52,17",
              "text": "make"
            },
            {
              "boundingBox": "96,307,44,20",
              "text": "ypur"
            },
            {
              "boundingBox": "145,301,80,18",
              "text": "timeline"
            },
            {
              "boundingBox": "231,307,89,12",
              "text": "awesome"
            }
          ]
        },
        {
          "boundingBox": "589,417,204,16",
          "words": [
            {
              "boundingBox": "589,417,204,16",
              "text": "www.birthdaywishes.expert"
            }
          ]
        }
      ]
    }
  ]
}

let textArray = [];
let str = '';

obj.regions.map(region => region.lines.map(line => line.words.map(word => textArray.push(word.text))));

textArray.map(val =>{
    str = str + val + ' ';
})

console.log(str);