TimeDuration

A collection of functions to manipulate time duration (i.e amount of milliseconds)

Index

Codec

• __decode__
• __encode__
• __schema__

Comparator

• !=
• ＜
• ＜=
• ==
• ＞
• ＞=
• clamp
• compare
• equals
• max
• min

Constructor

• __call__
• from
• of

Formatting

• asString

Numeric

• -
• *
• **
• +
• abs
• isNegative
• isPositive
• isZero
• negate
• sign
• zero

Type

• __inspect__
• asInstance
• hasInstance
• unwrap
• wrap

Other

• typeName
• toDays
• toHours
• toMinutes
• toSeconds
• toWeeks

Codec

__decode__

• __decode__(this, input, context): Result<TimeDuration, CodecError>

• Returns the decoded input, Result.Ok or Result.Error()

  interface SomeObject {
    foo: string
  }
  const someCodec: Codec<SomeObject> = ...;
  const input: unknown = ...;
  const decoded = Codec.decode(someCodec, input);

__encode__

• __encode__(this, input): unknown

• Returns the encoded input

  interface SomeObject {
    foo: string
  }
  const someCodec: Codec<SomeObject> = ...;
  const someObject: SomeObject = { foo: "bar" }
  const encoded = Codec.decode(someCodec, someObject);

__schema__

• __schema__(this): JSONValue

• Returns the JSONSchema corresponding to the decoded type

  const someCodec: Codec<unknown> = ...;
  const jsonSchema = Codec.schema(someCodec);

Comparator

!=

• !=(this, left, right): boolean

• "Not equal to" operator

  const TEqual: Equal<T>;
  TEqual['!='](value, otherValue); // true
  TEqual['!='](value, value); // false

＜

• ＜(this, left, right): boolean

• "Less than" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare['<'](smallerT, smallerT); // false
  TCompare['<'](smallerT, greaterT); // true
  TCompare['<'](greaterT, smallerT); // false

＜=

• ＜=(this, left, right): boolean

• "Less than or equal to" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare['<='](smallerT, smallerT); // true
  TCompare['<='](smallerT, greaterT); // true
  TCompare['<='](greaterT, smallerT); // false

==

• ==(this, left, right): boolean

• "Equal to" operator

  type T = // ...
  const TEqual: Equal<T>;
  TEqual['=='](value, value); // true
  TEqual['=='](value, otherValue); // false

＞

• ＞(this, left, right): boolean

• "Greater than" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare['>'](smallerT, smallerT); // false
  TCompare['>'](smallerT, greaterT); // false
  TCompare['>'](greaterT, smallerT); // true

＞=

• ＞=(this, left, right): boolean

• "Greater than or equal to" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare['>='](smallerT, smallerT); // true
  TCompare['>='](smallerT, greaterT); // false
  TCompare['>='](greaterT, smallerT); // true

clamp

• clamp(this, value, minValue, maxValue): TimeDuration

• Clamp value between minValue and maxValue

  type T;
  const TCompare: Comparable<T>;
  TCompare.clamp(value, min, max); // min if value < min, max if value > max, otherwise value itself

compare

• compare(this, left, right): Ordering

• Return an Ordering that represents comparison result

  type T;
  const TCompare: Comparable<T>;
  const sorted = [3, 1, 1].sort(TCompare.compare);

  See more at Order

equals

• equals(this, left, right): boolean

• Alias to '=='

  type T = // ...
  const TEqual: Equal<T>;
  TEqual.equals(value, value); // true
  TEqual.equals(value, otherValue); // false

max

• max(this, left, right): TimeDuration

• "maximum" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare.max(smallerT, greaterT); // greaterT

min

• min(this, left, right): TimeDuration

• "minimum" operator

  type T;
  const TCompare: Comparable<T>;
  const smallerT: T;
  const greaterT: T;
  TCompare.min(smallerT, greaterT); // smallerT

Constructor

__call__

• __call__(source): TimeDuration

• Converts a number or a TimeDurationObject to a TimeDuration

  const duration = TimeDuration.from(1000);// 1000
  const duration = TimeDuration.from({ milliseconds: 3, seconds: 2, hours: 1 });// 3 + 1000 * 2 + 1000 * 60 * 60 * 1

from

• from(source): TimeDuration

• Converts a number or a TimeDurationObject to a TimeDuration

  const duration = TimeDuration.from(1000);// 1000
  const duration = TimeDuration.from({ milliseconds: 3, seconds: 2, hours: 1 });// 3 + 1000 * 2 + 1000 * 60 * 60 * 1

of

• of(milliseconds): TimeDuration

• Return a duration from a number

  const duration = TimeDuration.of(0);// typeof duration === 'number'

Formatting

asString

• asString(this, self): string

• Converts the given value to a String.

  Number.asString(123); // '123'

Numeric

-

• -(left, right): TimeDuration

• Subtraction operator

  type T = ...;
  const TNumeric: Numeric.Subtract<T> = ...;
  const result = Numeric['-'](left, right);// represents (left - right)

*

• *(left, right): TimeDuration

• Multiplication operator

  type T = ...;
  const TNumeric: Numeric.Multiply<T> = ...;
  const result = Numeric['*'](left, right);// represents (left * right)

**

• **(left, right): TimeDuration

• Power operator

  type T = ...;
  const TNumeric: Numeric.Power<T> = ...;
  const result = Numeric['**'](left, right);// represents (left ** right)

+

• +(left, right): TimeDuration

• Addition operator

  type T = ...;
  const TNumeric: Numeric.Add<T> = ...;
  const result = TNumeric['+'](left, right);// represents (left + right)

abs

• abs(this, value): TimeDuration

• Absolute value. It should satisfy Numeric['*'](Numeric.abs(x), Numeric.sign(x)) == x

  type T = ...;
  const TSigned: Numeric.Signed<T> = ...;
  const result = TSigned.abs(value);// absolute value of (value)

isNegative

• isNegative(this, self): boolean

• Returns true if the number is negative and false if the number is zero or positive.

  Number.isPositive(-1);// true
  Number.isPositive(0);// false
  Number.isPositive(1);// false

isPositive

• isPositive(this, self): boolean

• Returns true if the number is positive and false if the number is zero or negative.

  Number.isPositive(-1);// false
  Number.isPositive(0);// false
  Number.isPositive(1);// true

isZero

• isZero(this, self): boolean

• Returns true if self is equal to the additive identity.

  Number.isZero(0); // true
  Number.isZero(1); // false

negate

• negate(this, self): TimeDuration

• Negates the given value.

  Number.negate(5); // -5
  Number.negate(Number.negate(5)); // 5

sign

• sign(this, value): TimeDuration

• Sign of a number. It should satisfy TSigned['*'](TSigned.abs(x), TSigned.sign(x)) == x

  Number.sign(-2.5);// -1
  Number.sign(0);// 0
  Number.sign(2.5);// 1

zero

• zero(this): TimeDuration

• Returns the additive identity element of T, 0.

  Number.zero(); // 0

Type

__inspect__

__inspect__: Option<(anyValue, depth, options, inspect) => string>

When defined, returns a custom string representation. To be useful, it should be bound to a prototype (ex: Struct)

import { inspect } from 'node:util';

interface Foo {
  foo: boolean;
}
const Foo = Struct.define<Foo>({
  typeName: 'Foo',
  __inspect__: (self) => `Foo { ${String(self.foo)} }`,
});
const myStruct = Struct.create(Foo, { foo: true });// 'Foo { true }'
inspect(myStruct);// 'Foo { true }'

asInstance

• asInstance(this, anyValue): Option<TimeDuration>

• Try to convert anyValue to enum value or else returns Option.None

  const StringType: Type<string>;
  StringType.asInstance('foo'); // Option.Some('foo')
  StringType.asInstance(12); // Option.None

hasInstance

• hasInstance(this, anyValue): anyValue is TimeDuration

• Return true if the given value is an instance of the class.

  const StringType: Type<string>;
  StringType.hasInstance('foo'); // true
  StringType.hasInstance(42); // false

unwrap

• unwrap(value): number

• Convert a tagged value to the underlying type

wrap

• wrap(value): TimeDuration

• Convert an underlying type to a tagged type

Other

typeName

Re-exports typeName

toDays

• toDays(self, truncate): number

• Converts a time duration to days.

  TimeDuration.toDays(TimeDuration.from({ days: 1 })); // == 1
  TimeDuration.toDays(TimeDuration.from({ days: 1.5 })); // == 1.5
  TimeDuration.toDays(TimeDuration.from({ days: 1.5 }), true); // == 1

toHours

• toHours(self, truncate): number

• Converts a time duration to hours.

  TimeDuration.toHours(TimeDuration(3600000));// == 1
  TimeDuration.toHours(TimeDuration(3600000 * 1.5));// == 1.5
  TimeDuration.toHours(TimeDuration(3600000 * 1.5, true));// == 1

toMinutes

• toMinutes(self, truncate): number

• Converts a time duration to minutes.

  TimeDuration.toMinutes(TimeDuration(60000)); // == 1.0
  TimeDuration.toMinutes(TimeDuration(150000), true); // == 2.5

toSeconds

• toSeconds(self, truncate): number

• Converts a time duration to seconds.

  TimeDuration.toSeconds(TimeDuration(1500));// == 1.5
  TimeDuration.toSeconds(TimeDuration(1500), true);// == 1

toWeeks

• toWeeks(self, truncate): number

• Converts a time duration to weeks.

  TimeDuration.toWeeks(TimeDuration.from({ weeks: 1 })); // == 1
  TimeDuration.toWeeks(TimeDuration.from({ weeks: 1.5 })); // == 1.5
  TimeDuration.toWeeks(TimeDuration.from({ weeks: 1.5 }), true); // == 1