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noImplicitBoolean

Summary

Section titled Summary

Description

Section titled Description

Disallow implicit true values on JSX boolean attributes

Examples

Section titled Examples

Invalid

Section titled Invalid
<input disabled />
code-block.jsx:1:8 lint/style/noImplicitBoolean  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Use explicit boolean values for boolean JSX props.
  
  > 1 │ <input disabled />
      │        ^^^^^^^^
    2 │ 
  
  ℹ Safe fix: Add explicit true literal for this attribute
  
    1 │ <input·disabled={true}·/>
      │                +++++++

Valid

Section titled Valid
<input disabled={false} />
<input disabled={''} />
<input disabled={0} />
<input disabled={undefined} />
<input disabled='false' />

How to configure

Section titled How to configure
biome.json
{
  "linter": {
    "rules": {
      "style": {
        "noImplicitBoolean": "error"
      }
    }
  }
}
Section titled Related links