Verse API reference page for the Verse module | Unreal Editor for Fortnite Documentation

Name	Description
`diagnostic`	An opaque diagnostic message that only shows up in diagnostic logs. The format of the diagnostic may change at any time without warning and may not be inspected by Verse code.
`event(t)`	A recurring, successively signaled parametric `event` with a `payload` allowing a simple mechanism to coordinate between concurrent tasks: `Await` suspends tasks to wait on this `event`, another task `Signal`s this `event` and resumes the suspended tasks in FIFO order.
`locale`	Used for message localization.
`message`	A localizable text message.

Name	Description
`cancelable`	Implemented by classes that allow users to cancel an operation. For example, calling `subscribable.Subscribe` with a callback returns a `cancelable` object. Calling `Cancel` on the return object unsubscribes the callback.
`disposable`	Implemented by classes whose instances have limited lifetimes.
`enableable`	Implemented by classes whose instances can be enabled and disabled.
`invalidatable`	Implemented by classes whose instances can become invalid at runtime.

Name	Description
`operator'='`
`operator'<>'`
`prefix'-'`
`operator'+'`
`operator'-'`
`operator'*'`
`operator'/'`
`operator'+='`
`operator'-='`
`operator'*='`
`Abs`
`operator'>'`
`operator'>='`
`operator'<'`
`operator'<='`
`Ceil`
`Floor`
`prefix'-'`
`operator'+'`
`operator'-'`
`operator'*'`
`operator'/'`
`operator'+='`
`operator'-='`
`operator'*='`
`operator'/='`
`Abs`
`operator'*'`
`operator'*'`
`operator'>'`
`operator'>='`
`operator'<'`
`operator'<='`
`operator'?'`
`operator'+'`
`operator'+='`
`operator'()'`
`operator'()'`
`operator'()'`
`ConcatenateMaps`
`operator'()'`
`operator'()'`
`weak_map`
`operator'?'`
`FitsInPlayerMap`
`Print`	Writes `Message` to a dedicated `Print` log while displaying it in `Color` on the client screen for `Duration` seconds. By default, `Color` is `NamedColors.White` and `Duration` is `2.0` seconds.
`Print`	Writes `Message` to a dedicated `Print` log while displaying it in `Color` on the client screen for `Duration` seconds. By default, `Color` is `NamedColors.White` and `Duration` is `2.0` seconds.
`Print`	Writes `Message` to a dedicated `Print` log while displaying it in `Color` on the client screen for `Duration` seconds. By default, `Color` is `NamedColors.White` and `Duration` is `2.0` seconds.
`Concatenate`	Makes a flattened `array` by concatenating the elements of `Arrays`.
`operator'+'`	Concatenates two diagnostic messages.
`operator'+'`	Concatenates a diagnostic message with a normal string, yielding a diagnostic message.
`operator'+'`	Concatenates a normal string with a diagnostic message, yielding a diagnostic message.
`ToDiagnostic`	Converts any Verse value into an opaque diagnostic message.
`Err`	Halts the Verse runtime with error `Message`.
`event`	A recurring, successively signaled parametric `event` with a `payload` allowing a simple mechanism to coordinate between concurrent tasks: `Await` suspends tasks to wait on this `event`, another task `Signal`s this `event` and resumes the suspended tasks in FIFO order.
`event`	A recurring, successively signaled event allowing a simple mechanism to coordinate between concurrent tasks.
`Ceil`	Returns the smallest `int` that is greater than or equal to `Val`. Fails if `not IsFinite(Val)`.
`Floor`	Returns the largest `int` that is less than or equal to `Val`. Fails if `not IsFinite(Val)`.
`Round`	Returns `Val` rounded to the nearest `int`. When the fractional part of `Val` is `0.5`, rounds to the nearest even `int` (per the IEEE-754 default rounding mode). Fails if `not IsFinite(Val)`.
`Int`	Returns the `int` that equals `Val` without the fractional part. Fails if `not IsFinite(val)`.
`ToString`	Makes a `string` representation of `Val`.
`GetSecondsSinceEpoch`	Returns the number of seconds since January 1, 1970 UTC, ignoring leap seconds. I.e, this function implements Unix time. This function always returns the same value within the same transaction.
`ToString`	Makes a printable `string` representation of `Val`.
`listenable`	A parametric interface combining `awaitable` and `subscribable`.
`listenable`	A parameterless interface combining `awaitable` and `subscribable`.
`Localize`	Makes a `string` by localizing `Message` based on the current `locale`.
`Clamp`	Constrains the value of `Val` between `A` and `B`. Robustly handles different argument orderings. Returns the median of `Val`, `A`, and `B`, such that comparisons with `NaN` operate as if `NaN > +Inf`.
`Clamp`	Constrains the value of `Val` between `A` and `B`. Robustly handles different argument orderings. Returns the median of `Val`, `A`, and `B`.
`Min`	Returns the minimum of `X` and `Y`.
`Max`	Returns the maximum of `X` and `Y`.
`Min`	Returns the minimum of `X` and `Y` unless either are `NaN`. Returns `NaN` if either `X` or `Y` are `NaN`.
`Max`	Returns the maximum of `X` and `Y` unless either are `NaN`. Returns `NaN` if either `X` or `Y` are `NaN`.
`Sqrt`	Returns the square root of `X` if `X >= 0.0`. Returns `NaN` if `X < 0.0`.
`Sin`	Returns the sine of `X` if `IsFinite(X)`. Returns `NaN` if `not IsFinite(X)
`Cos`	Returns the cosine of `X` if `IsFinite(X)`. Returns `NaN` if `not IsFinite(X)
`Tan`	Returns the tangent of `X` if `IsFinite(X)`. Returns `NaN` if `not IsFinite(X).
`ArcSin`	Returns the inverse sine (arcsine) of `X` if `-1.0 <= X <= 1.0`.
`ArcCos`	Returns the inverse cosine (arccosine) of `X` if `-1.0 <= X <= 1.0`.
`ArcTan`	Returns the inverse tangent (arctangent) of `X` such that:`-PiFloat/2.0 <= ArcTan(x) <= PiFloat/2.0`.
`ArcTan`	Returns the angle in radians at the origin between a ray pointing to `(X, Y)` and the positive `X` axis such that `-PiFloat < ArcTan(Y, X) <= PiFloat`. Returns 0.0 if `X=0.0 and Y=0.0`.
`Sinh`	Returns the hyperbolic sine of `X`.
`Cosh`	Returns the hyperbolic cosine of `X`.
`Tanh`	Returns the hyperbolic tangent of `X`.
`ArSinh`	Returns the inverse hyperbolic sine of `X` if `IsFinite(X)`.
`ArCosh`	Returns the inverse hyperbolic cosine of `X` if `1.0 <= X`.
`ArTanh`	Returns the inverse hyperbolic tangent of `X` if `IsFinite(X)`.
`Pow`	Returns `A` to the power of `B`.
`Quotient`	Returns the quotient `X/Y` as defined by Euclidean division, i.e.: `Quotient[X/Y] = Floor[X/Y]` when `Y > 0` `Quotient[X/Y] = Ceil[X/Y]` when `Y < 0` `Quotient[X/Y] * Y + Mod[X,Y] = X` Fails if `Y = 0`.
`Mod`	Returns the remainder of `X/Y` as defined by Euclidean division, i.e.: `Mod[X,Y] = X - Quotient(X/Y)*Y` `0 <= Mod[X,Y] < Abs(Y)` Fails if `Y=0`.
`Exp`	Returns the natural exponent of `X`.
`Ln`	Returns the natural logarithm of `X`.
`Log`	Returns the base `B` logarithm of `X`.
`Lerp`	Used to linearly interpolate/extrapolate between `From` (when `Parameter = 0.0`) and `To` (when `Parameter = 1.0`). Expects that all arguments are finite. Returns `From(1 - Parameter) + ToParameter`.
`Sgn`	Returns the sign of `Val`: `1` if `Val > 0` `0` if `Val = 0` `-1` if `Val < 0`
`Sgn`	Returns the sign of `Val`: `1.0` if `Val > 0.0` `0.0` if `Val = 0.0` `-1.0` if `Val < 0.0` `NaN` if `Val = NaN`
`IsAlmostEqual`	Succeeds if `Val1` and `Val2` are within `AbsoluteTolerance` of each other.
`signalable`	A parametric interface implemented by events with a `payload` that can be signaled. Can be used with `awaitable`, `subscribable`, or both (see: `listenable`).
`Join`	Makes a `string` by concatenating `Separator` between the elements of `Strings`.
`ToString`	Returns `String` without modification.
`ToString`	Makes a `string` from `Character`.
`subscribable`	A parametric interface implemented by events with a `payload` that can be subscribed to. Matched with `signalable.`
`subscribable`	A parameterless interface implemented by events that can be subscribed to.

Name	Description
`Inf`

NaN

PiFloat

Verse module

Classes and Structs

Interfaces

Functions

Data