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no-unsafe-member-access

Disallows member access on a value with type any.

Despite your best intentions, the any type can sometimes leak into your codebase. Member access on any typed variables is not checked at all by TypeScript, so it creates a potential safety hole, and source of bugs in your codebase.

Attributes

  • Included in configs
    • ✅ Recommended
    • 🔒 Strict
  • Fixable
    • 🔧 Automated Fixer
    • 🛠 Suggestion Fixer
  • 💭 Requires type information

Rule Details

This rule disallows member access on any variable that is typed as any.

Examples of code for this rule:

declare const anyVar: any;
declare const nestedAny: { prop: any };

anyVar.a;
anyVar.a.b;
anyVar['a'];
anyVar['a']['b'];

nestedAny.prop.a;
nestedAny.prop['a'];

const key = 'a';
nestedAny.prop[key];

// Using an any to access a member is unsafe
const arr = [1, 2, 3];
arr[anyVar];
nestedAny[anyVar];

Options

// .eslintrc.json
{
"rules": {
"@typescript-eslint/no-unsafe-member-access": "error"
}
}

This rule is not configurable.