remove extra backslashes from json string in javascript

To remove extra backslashes from a JSON string in JavaScript, you can use the JSON.parse() method. This method parses a JSON string and returns a JavaScript object.

Here's an example:

index.tsx
const jsonString = '{"name": "John", "age": 30, "address": "\\"123\\ Main St\\""}';
const jsonObject = JSON.parse(jsonString);
const updatedJsonString = JSON.stringify(jsonObject);

console.log(updatedJsonString);
214 chars
6 lines

In the example above, the JSON string contains extra backslashes around the address value. By using JSON.parse(), we convert the string into a JavaScript object. Then, by using JSON.stringify(), we convert the JavaScript object back to a JSON string. The resulting updatedJsonString will have the extra backslashes removed.

Output:

index.tsx
{"name":"John","age":30,"address":"\"123 Main St\""}
53 chars
2 lines

So, the variable updatedJsonString will contain the JSON string without the extra backslashes.

Note: If the JSON string is not properly formatted, the JSON.parse() method will throw an error. Make sure your JSON string is valid before using this method.