如何解析JavaScript中JSON字符串的normal、soft、adult字段值

Hey there! Let's sort this out quickly—you're closer than you think to getting those values.

First, a quick key point: when you ran console.log(JSON.stringify(body)) and got that escaped JSON string, that means the original body variable is already a JavaScript object! You don't need to convert it to a string first; you can directly access its properties.

Option 1: Use the Original body Object (Recommended) #

Since body is already parsed and ready to use, just drill down into its nested properties like this:

// Grab each value directly from the body object
const normalScore = body.result.normal;
const softScore = body.result.soft;
const adultScore = body.result.adult;

// Test the extracted values
console.log(normalScore); // Output: 0.002
console.log(softScore);   // Output: 0.776
console.log(adultScore);  // Output: 0.222

Option 2: If You Only Have the JSON String (e.g., Copied from Logs) #

If you're working with the escaped string from your log output instead of the original body object, use JSON.parse() to convert it back into a usable JavaScript object:

// The JSON string from your logs (note: backslashes are only for escaping in the log display)
const jsonString = '{"result":{"normal":0.002,"soft":0.776,"adult":0.222}}';

// Parse the string into an object
const parsedData = JSON.parse(jsonString);

// Extract the values you need
const normalScore = parsedData.result.normal;
const softScore = parsedData.result.soft;
const adultScore = parsedData.result.adult;

console.log(normalScore); // 0.002

Quick Recap #

• JSON.stringify() takes a JavaScript object and turns it into a string (which is what you used to log your data).
• JSON.parse() does the reverse: converts a JSON string into a usable object.

Since you already had the body object to begin with, Option 1 is the simplest and most efficient way to get your values.

内容的提问来源于stack exchange，提问作者seongho Joo