(divisor: BigDecimal): (self: BigDecimal) => BigDecimal
(self: BigDecimal, divisor: BigDecimal): BigDecimalReturns the decimal remainder left over when one operand is divided by a non-zero second operand.
When to use
Use when you need to compute a BigDecimal remainder with a divisor known to
be non-zero and want a plain BigDecimal result instead of an Option.
Gotchas
Throws a RangeError if the divisor is 0.
Example (Computing remainders unsafely)
import { BigDecimal } from "effect"
import * as assert from "node:assert"
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("2"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("0")
)
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("3"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("1")
)
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("-4"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("0")
)export const const remainderUnsafe: {
(divisor: BigDecimal): (
self: BigDecimal
) => BigDecimal
(
self: BigDecimal,
divisor: BigDecimal
): BigDecimal
}
Returns the decimal remainder left over when one operand is divided by a
non-zero second operand.
When to use
Use when you need to compute a BigDecimal remainder with a divisor known to
be non-zero and want a plain BigDecimal result instead of an Option.
Gotchas
Throws a RangeError if the divisor is 0.
Example (Computing remainders unsafely)
import { BigDecimal } from "effect"
import * as assert from "node:assert"
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("2"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("0")
)
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("3"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("1")
)
assert.deepStrictEqual(
BigDecimal.remainderUnsafe(BigDecimal.fromStringUnsafe("-4"), BigDecimal.fromStringUnsafe("2")),
BigDecimal.fromStringUnsafe("0")
)
remainderUnsafe: {
(divisor: BigDecimal(parameter) divisor: {
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;
}
divisor: 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;
}
self: BigDecimal) => 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;
}
self: BigDecimal, divisor: BigDecimal(parameter) divisor: {
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;
}
divisor: BigDecimal): BigDecimal
} = dual<(...args: Array<any>) => any, (self: BigDecimal, divisor: BigDecimal) => BigDecimal>(arity: 2, body: (self: BigDecimal, divisor: BigDecimal) => BigDecimal): ((...args: Array<any>) => any) & ((self: BigDecimal, divisor: BigDecimal) => BigDecimal) (+1 overload)Creates a function that can be called in data-first style or data-last
(pipe-friendly) style.
When to use
Use to expose one implementation through both direct and pipe-friendly
call styles.
Details
Pass either the arity of the uncurried function or a predicate that decides
whether the current call is data-first. Arity is the common case. Use a
predicate when optional arguments make arity ambiguous.
Example (Selecting data-first or data-last style by arity)
import { Function, pipe } from "effect"
const sum = Function.dual<
(that: number) => (self: number) => number,
(self: number, that: number) => number
>(2, (self, that) => self + that)
console.log(sum(2, 3)) // 5
console.log(pipe(2, sum(3))) // 5
Example (Defining overloads with call signatures)
import { Function, pipe } from "effect"
const sum: {
(that: number): (self: number) => number
(self: number, that: number): number
} = Function.dual(2, (self: number, that: number): number => self + that)
console.log(sum(2, 3)) // 5
console.log(pipe(2, sum(3))) // 5
Example (Selecting data-first or data-last style with a predicate)
import { Function, pipe } from "effect"
const sum = Function.dual<
(that: number) => (self: number) => number,
(self: number, that: number) => number
>(
(args) => args.length === 2,
(self, that) => self + that
)
console.log(sum(2, 3)) // 5
console.log(pipe(2, sum(3))) // 5
dual(2, (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;
}
self: BigDecimal, divisor: BigDecimal(parameter) divisor: {
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;
}
divisor: BigDecimal): BigDecimal => {
if (divisor: BigDecimal(parameter) divisor: {
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;
}
divisor.BigDecimal.value: bigintvalue === const bigint0: bigintbigint0) {
throw new var RangeError: RangeErrorConstructor
new (message?: string, options?: ErrorOptions) => RangeError (+3 overloads)
RangeError("Division by zero")
}
const const max: numbermax = var Math: MathAn intrinsic object that provides basic mathematics functionality and constants.
Math.Math.max(...values: number[]): numberReturns the larger of a set of supplied numeric expressions.
max(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;
}
self.BigDecimal.scale: numberscale, divisor: BigDecimal(parameter) divisor: {
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;
}
divisor.BigDecimal.scale: numberscale)
return const make: (
value: bigint,
scale: number
) => BigDecimal
Creates a BigDecimal from a bigint value and a scale.
When to use
Use to construct a decimal directly from its unscaled integer value and
decimal scale.
Example (Creating decimals from bigint and scale)
import { BigDecimal } from "effect"
// Create 123.45 (12345 with scale 2)
const decimal = BigDecimal.make(12345n, 2)
console.log(BigDecimal.format(decimal)) // "123.45"
// Create 42 (42 with scale 0)
const integer = BigDecimal.make(42n, 0)
console.log(BigDecimal.format(integer)) // "42"
make(const scale: {
(scale: number): (
self: BigDecimal
) => BigDecimal
(self: BigDecimal, scale: number): BigDecimal
}
scale(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;
}
self, const max: numbermax).BigDecimal.value: bigintvalue % const scale: {
(scale: number): (
self: BigDecimal
) => BigDecimal
(self: BigDecimal, scale: number): BigDecimal
}
scale(divisor: BigDecimal(parameter) divisor: {
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;
}
divisor, const max: numbermax).BigDecimal.value: bigintvalue, const max: numbermax)
})