useSimplifiedLogicExpression

JavaScript (and super languages)

摘要

¥Summary

规则生效日期：v1.0.0

¥Rule available since: v1.0.0
诊断类别：lint/complexity/useSimplifiedLogicExpression

¥Diagnostic Category: lint/complexity/useSimplifiedLogicExpression
此规则包含 safe 修复程序。

¥This rule has a safe fix.
此规则的默认严重级别为 information。

¥The default severity of this rule is information.

如何配置

¥How to configure

1
{
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  "linter": {
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    "rules": {
4
      "complexity": {
5
        "useSimplifiedLogicExpression": "error"
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      }
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    }
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  }
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}

描述

¥Description

从逻辑表达式中丢弃冗余术语。

¥Discard redundant terms from logical expressions.

示例

¥Examples

无效

¥Invalid

1
const boolExp = true;
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const r = true && boolExp;

code-block.js:2:11 lint/complexity/useSimplifiedLogicExpression  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Logical expression contains unnecessary complexity.
  
    1 │ const boolExp = true;
  > 2 │ const r = true && boolExp;
      │           ^^^^^^^^^^^^^^^
    3 │ 
  
  ℹ Safe fix: Discard redundant terms from the logical expression.
  
    2 │ const·r·=·true·&&·boolExp;
      │           --------

1
const boolExp2 = true;
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const r2 = boolExp || true;

code-block.js:2:12 lint/complexity/useSimplifiedLogicExpression  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Logical expression contains unnecessary complexity.
  
    1 │ const boolExp2 = true;
  > 2 │ const r2 = boolExp || true;
      │            ^^^^^^^^^^^^^^^
    3 │ 
  
  ℹ Safe fix: Discard redundant terms from the logical expression.
  
    2 │ const·r2·=·boolExp·||·true;
      │            -----------

1
const nonNullExp = 123;
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const r3 = null ?? nonNullExp;

code-block.js:2:12 lint/complexity/useSimplifiedLogicExpression  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Logical expression contains unnecessary complexity.
  
    1 │ const nonNullExp = 123;
  > 2 │ const r3 = null ?? nonNullExp;
      │            ^^^^^^^^^^^^^^^^^^
    3 │ 
  
  ℹ Safe fix: Discard redundant terms from the logical expression.
  
    2 │ const·r3·=·null·??·nonNullExp;
      │            --------

1
const boolExpr1 = true;
2
const boolExpr2 = false;
3
const r4 = !boolExpr1 || !boolExpr2;

code-block.js:3:12 lint/complexity/useSimplifiedLogicExpression  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━

  ℹ Logical expression contains unnecessary complexity.
  
    1 │ const boolExpr1 = true;
    2 │ const boolExpr2 = false;
  > 3 │ const r4 = !boolExpr1 || !boolExpr2;
      │            ^^^^^^^^^^^^^^^^^^^^^^^^
    4 │ 
  
  ℹ Safe fix: Reduce the complexity of the logical expression.
  
    1 1 │   const boolExpr1 = true;
    2 2 │   const boolExpr2 = false;
    3   │ - const·r4·=·!boolExpr1·||·!boolExpr2;
      3 │ + const·r4·=·!(boolExpr1·&&·boolExpr2);
    4 4 │

有效

¥Valid

1
const boolExpr3 = true;
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const boolExpr4 = false;
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const r5 = !(boolExpr1 && boolExpr2);
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const boolExpr5 = true;
5
const boolExpr6 = false;

useSimplifiedLogicExpression

摘要

如何配置

描述

示例

无效

有效

相关链接