math/prefer-math-sqrt2

enforce the use of Math.SQRT2 instead of other ways

• ⚙️ This rule is included in "plugin:math/recommended".
• 🔧 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 use of Math.SQRT2 instead of other ways to calculate the square root of 2.

Math.SQRT2 provides several advantages over manual calculations:

• Clarity of intent: Immediately obvious that you're using √2
• Precision: Provides the most accurate representation available in JavaScript
• Performance: Direct constant access instead of function call overhead
• Mathematical significance: Represents a fundamental irrational constant
• Readability: More expressive than complex calculations

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🔧 Options

Nothing.

📚 Further reading

• MDN - Math.SQRT2
• MDN - Math.sqrt()

🚀 Version

This rule was introduced in eslint-plugin-math v0.4.0

🔍 Implementation

• Rule source
• Test source
• Test fixture sources