The problem of a circular reference arose when attempting to pass the model using the JSON.stringify method

I am looking to replace all fields with null values to prevent the model from proceeding further. However, when I attempt to create a replacer function and pass the model, I am encountering a circular reference issue. Is there a more effective way to accomplish this task without triggering the error?

const replacer = function (k, v) {

      if (v === '') {
        return undefined
      }
      return v
    }

return JSON.parse(JSON.stringify(this.getData(), replacer))

Answer №1

It seems like you're looking to transform an array of data by replacing any empty string items with undefined. You can achieve this by using the following code snippet:

const example_data = ["hello", "", "", "world", "!", ""];
const empty_to_undefined = example_data.map(item => item === "" ? undefined : item);
console.log(empty_to_undefined)

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