useDestructuring

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JavaScript (and super languages)

Summary

Rule available since: v2.3.9
Diagnostic Category: lint/nursery/useDestructuring
This rule doesn’t have a fix.
The default severity of this rule is information.
Sources:
- Same as prefer-destructuring

How to configure

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{
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  "linter": {
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    "rules": {
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      "nursery": {
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        "useDestructuring": "error"
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      }
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    }
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  }
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}

Description

Require destructuring from arrays and/or objects

With JavaScript ES6, a new syntax was added for creating variables from an array index or object property, called destructuring. This rule enforces usage of destructuring instead of accessing a property through a member expression.

Examples

Invalid

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var foo = array[0];

code-block.js:1:5 lint/nursery/useDestructuring ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use array destructuring instead of accessing array elements by index.
  
  > 1 │ var foo = array[0];
      │     ^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Array destructuring is more readable and expressive than accessing individual elements by index.
  
  ℹ Replace the array index access with array destructuring syntax.
  
  ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.

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var bar = foo.bar;

code-block.js:1:5 lint/nursery/useDestructuring ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use object destructuring instead of accessing object properties.
  
  > 1 │ var bar = foo.bar;
      │     ^^^^^^^^^^^^^
    2 │ 
  
  ℹ Object destructuring is more readable and expressive than accessing individual properties.
  
  ℹ Replace the property access with object destructuring syntax.
  
  ℹ This rule belongs to the nursery group, which means it is not yet stable and may change in the future. Visit https://biomejs.dev/linter/#nursery for more information.

Valid

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var [foo] = array;

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var { bar } = foo;