Is there a way to reverse order in a union type?
Typically, union type order doesn’t matter. But for a typing like
Is there a way to reverse order in a union type?
Typically, union type order doesn’t matter. But for a typing like
How to narrow a complex union in TypeScript by checking only part of it?
I have the following TypeScript code, describing a type that can have a specific subset of “animations” or “points”:
How to make typecript know the return type of a function when passing different variables?
I want to implement a set of 3 functions: pair
, head
, tail
that works like this
Typescript. How to assign a type based on the existance of a property?
I’m trying to apply a type if the object has x
. What I tried had unexpected results. Can anyone explain the results andor offer a solution?
How to get typescript to be more specific in string interpolation over a union
export const schedules = [ { unit: “hour”, quantity: 6 }, { unit: “day”, quantity: 1 }, ] as const; const getOffsetName = (schedule: (typeof schedules)[number]) => `${schedule.quantity}_${schedule.unit}` Why is the return type of getOffsetName “6_hour” | “6_day” | “1_hour” | “1_day” instead of “6_hour” | “1_day”? Is there any way to make typescript more […]
How to handle parameters of union functions correctly when they are tied to another parameter?
In typescript I know that for type safety when you have a union of functions, if you want to call this function, you have to pass it a intersection of its parameters instead of an union, but this behavior can be annoying when you already have type checks that ensure that no matter what function of the union you’ll call, you will always pass it the right parameters even when passing an union instead of passing every possible parameters. Let me explain with a small example: