Math.sumPrecise()
Newly Available (since 2026-04-10)
Expected to be Widely Available on 2028-10-10
The Math.sumPrecise() static method returns the sum of an iterable of numbers. It avoids the precision loss of intermediate partial sums, as found using reduce() or a loop to add together an array of values.
Browser support
- Chrome 147 Released on 2026-04-07
- Chrome Android 147 Released on 2026-04-07
- Edge 147 Released on 2026-04-10
- Firefox 137 Released on 2025-04-01
- Firefox for Android 137 Released on 2025-04-01
- Safari 26.2 Released on 2025-12-12
- Safari on iOS 26.2 Released on 2025-12-12
MDN documentation
Specifications
- ECMAScript® 2027 Language Specification (#sec-math.sumprecise), from TC39 (Ecma International).
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