https://github.com/pudochu/extracting-json-from-string

(Simple!) Extracting JSON from String ✨
https://github.com/pudochu/extracting-json-from-string

Last synced: 7 months ago
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(Simple!) Extracting JSON from String ✨

• Host: GitHub
• URL: https://github.com/pudochu/extracting-json-from-string
• Owner: Pudochu
• Created: 2023-04-19T15:21:18.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2024-03-24T08:12:04.000Z (over 1 year ago)
• Last Synced: 2025-03-17T02:46:32.597Z (7 months ago)
• Language: JavaScript
• Homepage:
• Size: 4.88 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# extracting-json-from-string

(Simple!) Extracting JSON from String ✨

```js

async function extractJSON(str) {

    // If the input is already an object, return it directly.

    if (typeof str === 'object') {

        return str;

    }

    // If the input is a string, try to parse it as JSON.

    if (typeof str === 'string') {

        try {

            return JSON.parse(str);

        } catch (e) {

            // If the first parse attempt fails, try to find the part that contains a JSON object.

            try {

                const jsonStart = str.indexOf("{");

                const jsonEnd = str.lastIndexOf("}");

                if (jsonStart !== -1 && jsonEnd !== -1) {

                    const jsonString = str.slice(jsonStart, jsonEnd + 1);

                    return JSON.parse(jsonString);

                }

            } catch (e) {

                // If the second parse attempt also fails, return false.

                console.error(e);

                return false;

            }

        }

    }

    // If the input is neither a string nor an object, return false.

    return false;

}

// Sample usages to test the function:

extractJSON('demo string {"text": "hi!"}').then(console.log); // result: {"text": "hi!"}

extractJSON({"text": "hi!"}).then(console.log); // result: {"text": "hi!"}

extractJSON("hello").then(console.log); // result: false;

```