math/abs

enforce the conversion to absolute values to be the method you prefer

🔧 The --fix option on the command line can automatically fix some of the problems reported by this rule.
💡 Some problems reported by this rule are manually fixable by editor suggestions.

📖 Rule Details

This rule aims to enforce the conversion to absolute values to be the method you prefer.

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json

{
  "math/abs": [
    "error",
    {
      "prefer": "Math.abs", // or "expression"
      "aggressive": false
    }
  ]
}

prefer ... enforces the conversion to absolute values to be the method you prefer. (default: "Math.abs")
- "Math.abs" ... enforces the conversion to absolute values to be the method Math.abs(n).
- "expression" ... enforces the conversion to absolute values to be the expression n < 0 ? -n : n.
aggressive ... configure the aggressive mode for only this rule. (default: false)

This plugin never reports negative expressions by default. Because it's hard to know the type of objects, it will cause false positives.

If you configured the aggressive mode, this plugin reports negative expressions even if the rules couldn't know the type of operands.

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If using this plugin and TypeScript, this plugin reports negative expressions by default because we can easily know types.