(self: BigDecimal, that: BigDecimal): OrderingProvides an Order instance for BigDecimal that allows comparing and sorting BigDecimal values.
When to use
Use when you need to sort or compare decimal values through APIs that accept an ordering instance.
Example (Comparing decimals)
import { BigDecimal } from "effect"
const a = BigDecimal.fromNumberUnsafe(1.5)
const b = BigDecimal.fromNumberUnsafe(2.3)
const c = BigDecimal.fromNumberUnsafe(1.5)
console.log(BigDecimal.Order(a, b)) // -1 (a < b)
console.log(BigDecimal.Order(b, a)) // 1 (b > a)
console.log(BigDecimal.Order(a, c)) // 0 (a === c)export const const Order: order.Order<BigDecimal>Provides an Order instance for BigDecimal that allows comparing and sorting BigDecimal values.
When to use
Use when you need to sort or compare decimal values through APIs that accept
an ordering instance.
Example (Comparing decimals)
import { BigDecimal } from "effect"
const a = BigDecimal.fromNumberUnsafe(1.5)
const b = BigDecimal.fromNumberUnsafe(2.3)
const c = BigDecimal.fromNumberUnsafe(1.5)
console.log(BigDecimal.Order(a, b)) // -1 (a < b)
console.log(BigDecimal.Order(b, a)) // 1 (b > a)
console.log(BigDecimal.Order(a, c)) // 0 (a === c)
Order: import orderorder.interface Order<in A>Represents a total ordering for values of type A.
When to use
Use when you need to define how values of a type are compared.
Details
An order returns -1 when the first value is less than the second, 0 when
the values are equal according to this ordering, and 1 when the first value
is greater than the second. It must satisfy total ordering laws: totality,
antisymmetry, and transitivity.
Example (Defining a custom Order)
import { Order } from "effect"
const byAge: Order.Order<{ name: string; age: number }> = (self, that) => {
if (self.age < that.age) return -1
if (self.age > that.age) return 1
return 0
}
const person1 = { name: "Alice", age: 30 }
const person2 = { name: "Bob", age: 25 }
console.log(byAge(person1, person2)) // 1
Order<BigDecimal> = import orderorder.function make<A>(
compare: (self: A, that: A) => -1 | 0 | 1
): Order<A>
Creates a new Order instance from a comparison function.
When to use
Use when you need a sorting rule not covered by the built-in orders or input
mapping helpers, and you can provide a total comparison.
Details
Uses reference equality (===) as a shortcut: if self === that, it returns
0 without calling the comparison function. The comparison function should
return -1, 0, or 1, and the returned order satisfies total ordering
laws when the comparison function does.
Example (Creating an Order)
import { Order } from "effect"
const byAge = Order.make<{ name: string; age: number }>((self, that) => {
if (self.age < that.age) return -1
if (self.age > that.age) return 1
return 0
})
console.log(byAge({ name: "Alice", age: 30 }, { name: "Bob", age: 25 })) // 1
console.log(byAge({ name: "Alice", age: 25 }, { name: "Bob", age: 30 })) // -1
make((self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
const scmp: Orderingscmp = import orderorder.const Number: Order<number>Order instance for numbers that compares them numerically.
When to use
Use when you need numeric ordering for numbers.
Details
0 is considered equal to -0. All NaN values are considered equal to
each other, and any NaN is considered less than any non-NaN number. All
other values use standard numeric comparison.
Example (Ordering numbers)
import { Order } from "effect"
console.log(Order.Number(1, 1)) // 0
console.log(Order.Number(1, 2)) // -1
console.log(Order.Number(2, 1)) // 1
console.log(Order.Number(0, -0)) // 0
console.log(Order.Number(NaN, 1)) // -1
Number(const sign: (n: BigDecimal) => OrderingDetermines the sign of a given BigDecimal.
When to use
Use to classify a BigDecimal as negative, zero, or positive.
Example (Reading decimal signs)
import { BigDecimal } from "effect"
import * as assert from "node:assert"
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("-5")), -1)
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("0")), 0)
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("5")), 1)
sign(self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
const sign: (n: BigDecimal) => OrderingDetermines the sign of a given BigDecimal.
When to use
Use to classify a BigDecimal as negative, zero, or positive.
Example (Reading decimal signs)
import { BigDecimal } from "effect"
import * as assert from "node:assert"
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("-5")), -1)
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("0")), 0)
assert.deepStrictEqual(BigDecimal.sign(BigDecimal.fromStringUnsafe("5")), 1)
sign(that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
const scmp: Orderingscmp !== 0) {
return const scmp: 1 | -1scmp
}
if (self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale > that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale) {
return import orderorder.const BigInt: Order<bigint>Order instance for bigints that compares them numerically.
When to use
Use when you need numeric ordering for bigint values.
Details
Uses standard numeric comparison for bigint values and handles arbitrarily
large integers.
Example (Ordering BigInts)
import { Order } from "effect"
console.log(Order.BigInt(1n, 2n)) // -1
console.log(Order.BigInt(2n, 1n)) // 1
console.log(Order.BigInt(1n, 1n)) // 0
BigInt(self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.value: bigintvalue, const scale: {
(scale: number): (
self: BigDecimal
) => BigDecimal
(self: BigDecimal, scale: number): BigDecimal
}
that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale).BigDecimal.value: bigintvalue)
}
if (self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale < that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale) {
return import orderorder.const BigInt: Order<bigint>Order instance for bigints that compares them numerically.
When to use
Use when you need numeric ordering for bigint values.
Details
Uses standard numeric comparison for bigint values and handles arbitrarily
large integers.
Example (Ordering BigInts)
import { Order } from "effect"
console.log(Order.BigInt(1n, 2n)) // -1
console.log(Order.BigInt(2n, 1n)) // 1
console.log(Order.BigInt(1n, 1n)) // 0
BigInt(const scale: {
(scale: number): (
self: BigDecimal
) => BigDecimal
(self: BigDecimal, scale: number): BigDecimal
}
self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.scale: numberscale).BigDecimal.value: bigintvalue, that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.value: bigintvalue)
}
return import orderorder.const BigInt: Order<bigint>Order instance for bigints that compares them numerically.
When to use
Use when you need numeric ordering for bigint values.
Details
Uses standard numeric comparison for bigint values and handles arbitrarily
large integers.
Example (Ordering BigInts)
import { Order } from "effect"
console.log(Order.BigInt(1n, 2n)) // -1
console.log(Order.BigInt(2n, 1n)) // 1
console.log(Order.BigInt(1n, 1n)) // 0
BigInt(self: BigDecimal(parameter) self: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.value: bigintvalue, that: BigDecimal(parameter) that: {
value: bigint;
scale: number;
normalized: BigDecimal;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
toString: () => string;
toJSON: () => unknown;
}
BigDecimal.value: bigintvalue)
})