Why JSON.parse method does not support undefined property value?

1 answers

2 points

Asked by:

27910

How to make possible to parse json with undefined value?

// ONLINE-RUNNER:browser;

var json = '{"value":undefined}';
var data = JSON.parse(json);

console.log(data);

1 answer

3 points

Answered by:

27910

It is impossible becouse of JSON format.

Try to use null instead.

// ONLINE-RUNNER:browser;

var json = '{"value":null}';
var data = JSON.parse(json);

console.log(data.value);

Some trick is to do not put value property.

// ONLINE-RUNNER:browser;

var json = '{}';
var data = JSON.parse(json);

console.log(data.value);

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