All of us have tried fetching the information from the server by hitting an API and parsing the response to indicate it on the web site. Likelihood is, you may need bought this error in some unspecified time in the future, and it is a frequent error to get caught.
When you run the next code you’ll get this error.
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const emptyString = ” const emptyArray = []
console.log(JSON.parse(emptyString)) console.log(JSON.parse(emptyArray)) |
I bought this error and tried resolving it. Gone by means of the solutions on Stackoverflow and tried debugging the code, and whereas debugging it, I discovered why this happens and how one can keep away from this error.
This error is as a result of we may be making an attempt to parse an empty string or an empty array utilizing JSON.parse()
And since we try to parse an empty string or empty array, finish of string is reached earlier than parsing the content material of JSON textual content.
Now we have to guarantee that the JSON we try to parse is legitimate. We may be getting both an empty array or an empty string because the response.
Another excuse may be because of the Content material-type header. The worth of the Content material-type header should be software/json.
Even when the server may be sending an empty response, we must be checking that as effectively.
Find out how to Remedy Error?
The best approach to repair this error is to wrap our code inside a attempt/catch block which can assist us in catching the error and with the assistance of that, we are able to present some error message.
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const emptyString = ” const emptyArray = []
attempt { console.log(JSON.parse(emptyString)) console.log(JSON.parse(emptyArray)) } catch(err) { console.log(err.message); } |
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