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Temporal.Duration.prototype.sign

Baseline Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The sign accessor property of Temporal.Duration instances returns 1 if this duration is positive, -1 if negative, and 0 if zero. Because a duration never has mixed signs, the sign of a duration is determined by the sign of any of its non-zero fields.

Examples

Using sign

const d1 = Temporal.Duration.from({ hours: 1, minutes: 30 });
const d2 = Temporal.Duration.from({ hours: -1, minutes: -30 });
const d3 = Temporal.Duration.from({ hours: 0 });

console.log(d1.sign); // 1
console.log(d2.sign); // -1
console.log(d3.sign); // 0

console.log(d1.abs().sign); // 1
console.log(d2.abs().sign); // 1
console.log(d3.abs().sign); // 0

console.log(d1.negated().sign); // -1
console.log(d2.negated().sign); // 1
console.log(d3.negated().sign); // 0

Specifications

Specification
Temporal
# sec-get-temporal.duration.prototype.sign

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on iOS Samsung Internet WebView Android WebView on iOS Bun Deno Node.js
sign
144
144
139
128
preview
144
139
95
No
No
144
No
1.4.0
2.7
26.0.0

See also

  • Temporal.Duration
  • Temporal.Duration.prototype.abs()
  • Temporal.Duration.prototype.negated()
  • Temporal.Duration.prototype.blank

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/Duration/sign

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