Use array destructuring (prefer-destructuring) error on eslint

Question

here is the part of my code that eslint doesn't like.

this.attributes.mb.start_date = this.dateInstance.config.defaultDate.split('T')[0]

How can I rewrite it to overcome this error?

Answer 1

eslint prefer-destructuring rule has two properties, array and object, can be used to turn on or off the destructuring requirement for each of those types independently. By default, both are true.

With array property enabled, this is incorrect

const foo = ['one', 'two'];

const x = foo[0];   // incorrect

The correct way to destructure an array is:

const [one, two] = foo;

console.log(one); // "one"
console.log(two); // "two"

as the rule says to access the element by destructuring the array, so let's say if you have a large array and you want to access large array indices directly, then the array property of this rule is not recommended to be enabled, as destructuring does not match this use case very well. You can simply put this in your .eslintrc to disable enforcing array destructuring in such cases:

{
  "rules": {
    "prefer-destructuring": ["error", {"object": true, "array": false}]
  }
}