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json-parsejson-stringifyx-purpose

Comfortable Chimpanzee answered on June 23, 2021 Popularity 1/10 Helpfulness 1/10

answer json-parsejson-stringifyx-purpose

json-parsejson-stringifyx-purpose

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It's a way of cloning an object, so that you get a complete copy that is unique but has the same properties as the cloned object.

var defaultParams = { a : 'b' };
var params = JSON.parse(JSON.stringify(defaultParams));

console.log( params.a ); // b
console.log( defaultParams.a ); // b
console.log( params === defaultParams ); // false
The above outputs false because even though both objects have the a property, with the value b, there are different objects that are independent of each other (they don't refer to the same reference).

The JSON method will only work with basic properties - no functions or methods.

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: javascript

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