Temporal.Duration.prototype.sign

The sign accessor property of {{jsxref("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#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Temporal.Duration")}}
• {{jsxref("Temporal/Duration/abs", "Temporal.Duration.prototype.abs()")}}
• {{jsxref("Temporal/Duration/negated", "Temporal.Duration.prototype.negated()")}}
• {{jsxref("Temporal/Duration/blank", "Temporal.Duration.prototype.blank")}}