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hooks.js
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hooks.js
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import React from "react";
import invariant from "tiny-invariant";
import Context from "./RouterContext.js";
import HistoryContext from "./HistoryContext.js";
import matchPath from "./matchPath.js";
const useContext = React.useContext;
export function useHistory() {
if (__DEV__) {
invariant(
typeof useContext === "function",
"You must use React >= 16.8 in order to use useHistory()"
);
}
return useContext(HistoryContext);
}
export function useLocation() {
if (__DEV__) {
invariant(
typeof useContext === "function",
"You must use React >= 16.8 in order to use useLocation()"
);
}
return useContext(Context).location;
}
export function useParams() {
if (__DEV__) {
invariant(
typeof useContext === "function",
"You must use React >= 16.8 in order to use useParams()"
);
}
const match = useContext(Context).match;
return match ? match.params : {};
}
export function useRouteMatch(path) {
if (__DEV__) {
invariant(
typeof useContext === "function",
"You must use React >= 16.8 in order to use useRouteMatch()"
);
}
const location = useLocation();
const match = useContext(Context).match;
return path ? matchPath(location.pathname, path) : match;
}