How to read json file in html

To use HTML to read JSON files, you need to: create JavaScript objects to parse JSON strings; use JavaScript to access JSON data, including properties, array elements, and nested objects.

How to read a JSON file using HTML

To read a JSON file using HTML, you can use the following steps:

1. Create a JavaScript object to parse JSON

const obj = JSON.parse(jsonString);

where jsonString is a string containing JSON data.

2. Use JavaScript to access JSON data

After parsing the JSON string, you can use JavaScript to access the data in it. Here are some examples:

// 访问 JSON 对象的属性
console.log(obj.name);

// 访问 JSON 数组的元素
console.log(obj[0]);

// 访问 JSON 嵌套对象
console.log(obj.nested.value);

Sample code:

<script>
  // 假设 JSON 数据已存储在 JSONString 变量中

  // 解析 JSON 字符串
  const obj = JSON.parse(jsonString);

  // 访问 JSON 数据
  console.log(obj.name); // 输出：John
  console.log(obj[0]); // 输出：{name: "Alice", age: 25}
  console.log(obj.nested.value); // 输出：100
</script>

Other notes:

• JSON data is required is a valid JSON format.
• If the JSON data contains special characters, the string may need to be escaped.
• You can use the XMLHttpRequest or fetch API to get JSON data from the server side.

The above is the detailed content of How to read json file in html. For more information, please follow other related articles on the PHP Chinese website!