noWith

Diagnostic Category: lint/complexity/noWith

JavaScript (and super languages)

Since: v1.0.0

Sources:

Same as: no-with

Description

Disallow with statements in non-strict contexts.

The with statement is potentially problematic because it adds members of an object to the current scope, making it impossible to tell what a variable inside the block actually refers to.

Examples

Invalid

function f() {
  with (point) {
    r = Math.sqrt(x * x + y * y); // is r a member of point?
  }
}

code-block.cjs:2:3 lint/complexity/noWith ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ✖ Unexpected use of with statement.
  
    1 │ function f() {
  > 2 │   with (point) {
      │   ^^^^^^^^^^^^^^
  > 3 │     r = Math.sqrt(x * x + y * y); // is r a member of point?
  > 4 │   }
      │   ^
    5 │ }
    6 │ 
  
  ℹ The with statement is potentially problematic because it adds members of an object to the current
    scope, making it impossible to tell what a variable inside the block actually refers to.

How to configure

{
  "linter": {
    "rules": {
      "complexity": {
        "noWith": "error"
      }
    }
  }
}