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import { isFunction } from "./is"
import type { Dict } from "./types"
type PredicateFn<T> = (key: T) => boolean
export interface SplitPropsFn {
<T extends Dict, K extends keyof T>(
props: T,
keys: K[],
): [Pick<T, K>, Omit<T, K>]
<T extends Dict, K extends PredicateFn<keyof T>>(
props: T,
keys: K,
): [Dict, Dict]
}
const splitPropFn = (props: Dict, predicate: PredicateFn<keyof Dict>) => {
const rest: Dict = {}
const result: Dict = {}
const allKeys = Object.keys(props)
for (const key of allKeys) {
if (predicate(key)) {
result[key] = props[key]
} else {
rest[key] = props[key]
}
}
return [result, rest] as any
}
export const splitProps: SplitPropsFn = (props: any, keys: any[]) => {
const predicate = isFunction(keys)
? keys
: (key: keyof Dict) => keys.includes(key)
return splitPropFn(props, predicate)
}
export const createSplitProps = <T>(keys: (keyof T)[]) => {
return function split<Props extends Partial<T>>(
props: Props,
): [T, Omit<Props, keyof T>] {
// @ts-expect-error
return splitProps(props, keys)
}
}
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