JSON.stringify

json-stringify.md

JSON.stringify()

The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.

Replacer - as a function

const foo = {
  baz: 'baz',
  bar: 'bar'
}

JSON.stringify(foo, (key, value) => {
  if (key === 'baz') {
    return 'qux'
  }
  
  return value
})

// => { baz: 'qux', bar: 'bar' }

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Replacer - as an array

const foo = {
  baz: 'baz',
  bar: 'bar'
}

JSON.stringify(foo, ['bar'])

// => { bar: 'bar' }

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