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noVoid

JavaScript (and super languages)

Summary

Rule available since: v1.0.0
Diagnostic Category: lint/complexity/noVoid
This rule doesn’t have a fix.
The default severity of this rule is warning.
Sources:
- Same as no-void

Description

Disallow the use of void operators, which is not a familiar operator.

The void operator is often used merely to obtain the undefined primitive value, usually using void(0) (which is equivalent to void 0). In these cases, the global variable undefined can be used.

Examples

Invalid

1
void 0;

code-block.js:1:1 lint/complexity/noVoid ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ⚠ The use of void is not allowed.
  
  > 1 │ void 0;
      │ ^^^^^^
    2 │ 
  
  ℹ If you use void to alter the return type of a function or return undefined, use the global undefined instead.

How to configure

1
{
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  "linter": {
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    "rules": {
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      "complexity": {
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        "noVoid": "error"
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      }
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    }
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  }
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}