noTernary

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JavaScript (and super languages)

Summary

Rule available since: v2.3.8
Diagnostic Category: lint/nursery/noTernary
This rule doesn’t have a fix.
The default severity of this rule is information.
Sources:
- Same as no-ternary

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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        "noTernary": "error"
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      }
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    }
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  }
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}

Description

Disallow ternary operators.

The ternary operator is used to conditionally assign a value to a variable. Some believe that the use of ternary operators leads to unclear code.

Examples

Invalid

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const foo = isBar ? baz : qux;

code-block.js:1:13 lint/nursery/noTernary ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Unexpected ternary operator.
  
  > 1 │ const foo = isBar ? baz : qux;
      │             ^^^^^^^^^^^^^^^^^
    2 │ 
  
  ℹ Ternary operators can lead to unclear code. Use if-else statement instead.

Valid

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let foo;
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if (isBar) {
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  foo = baz;
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} else {
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  foo = qux;
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}