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Category: JavaScript floating-point

Handling floating-point arithmetic and rounding in JavaScript.

JavaScript floating-point

Rounding in JavaScript: Math.round() Half-Up Behavior and Banker’s Rounding

JavaScript's Math.round() rounds ties toward +∞, not away from zero, so Math.round(-2.5) is -2. Banker's rounding (half-to-even) requires a custom function or decimal library.

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