(input: unknown): input is booleanChecks whether a value is a boolean.
When to use
Use when you need a Predicate guard to narrow an unknown value to a
boolean.
Details
Uses typeof input === "boolean".
Example (Guarding booleans)
import { Predicate } from "effect"
const data: unknown = true
if (Predicate.isBoolean(data)) {
console.log(data ? "yes" : "no")
}Source effect/Predicate.ts:6053 lines
export function function isBoolean(
input: unknown
): input is boolean
Checks whether a value is a boolean.
When to use
Use when you need a Predicate guard to narrow an unknown value to a
boolean.
Details
Uses typeof input === "boolean".
Example (Guarding booleans)
import { Predicate } from "effect"
const data: unknown = true
if (Predicate.isBoolean(data)) {
console.log(data ? "yes" : "no")
}
isBoolean(input: unknowninput: unknown): input: unknowninput is boolean {
return typeof input: unknowninput === "boolean"
}Referenced by 6 symbols