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IsFloat<T>

IsFloat<T> = T extends number ? `${T}` extends `${infer _Sign extends "" | "-"}${number}.${infer Decimal extends number}` ? Decimal extends Zero ? false : true : false : false

Defined in: packages/react-querybuilder/src/types/type-fest/is-float.ts:28

Returns a boolean for whether the given number is a float, like 1.5 or -1.5.

It returns false for Infinity.

Use-case:

  • If you want to make a conditional branch based on the result of whether a number is a float or not.

Type Parameters​

Type Parameter
T

Example​

type Float = IsFloat<1.5>;
//=> true

type IntegerWithDecimal = IsInteger<1.0>;
//=> false

type NegativeFloat = IsInteger<-1.5>;
//=> true

type Infinity_ = IsInteger<Infinity>;
//=> false
caution

API documentation is generated from the latest commit on the main branch. It may be somewhat inconsistent with official releases of React Query Builder.