What is the “key” which changes on every route change with connected-react-router?
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When an action for navigating to a route is triggered, an action triggers a new state where the router.location.pathname changes according to the browser's history.
Another property changes as well: router.location.key, to a new random string.
Even when the pathname itself doesn't change (clicking on a link to a page from the page itself), the key still updates.
What's the purpose of the key property? In which situations would I want my own state to have a randomly generated key which updates on very action dispatch? Why is it not a number which simply increments?
redux react-router-v4 connected-react-router
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
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up vote
0
down vote
favorite
When an action for navigating to a route is triggered, an action triggers a new state where the router.location.pathname changes according to the browser's history.
Another property changes as well: router.location.key, to a new random string.
Even when the pathname itself doesn't change (clicking on a link to a page from the page itself), the key still updates.
What's the purpose of the key property? In which situations would I want my own state to have a randomly generated key which updates on very action dispatch? Why is it not a number which simply increments?
redux react-router-v4 connected-react-router
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
When an action for navigating to a route is triggered, an action triggers a new state where the router.location.pathname changes according to the browser's history.
Another property changes as well: router.location.key, to a new random string.
Even when the pathname itself doesn't change (clicking on a link to a page from the page itself), the key still updates.
What's the purpose of the key property? In which situations would I want my own state to have a randomly generated key which updates on very action dispatch? Why is it not a number which simply increments?
redux react-router-v4 connected-react-router
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
When an action for navigating to a route is triggered, an action triggers a new state where the router.location.pathname changes according to the browser's history.
Another property changes as well: router.location.key, to a new random string.
Even when the pathname itself doesn't change (clicking on a link to a page from the page itself), the key still updates.
What's the purpose of the key property? In which situations would I want my own state to have a randomly generated key which updates on very action dispatch? Why is it not a number which simply increments?
redux react-router-v4 connected-react-router
redux react-router-v4 connected-react-router
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
asked Nov 10 at 9:44
Lazar Ljubenović
9,05942451
9,05942451
add a comment |
add a comment |
1 Answer
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connected-react-router simply stores the location object from react-router which in turn creates the location object using the history package. In the readme of history the key property is described:
Locations may also have the following properties:
location.key - A unique string representing this location (supported in
createBrowserHistory and createMemoryHistory)
It is used internally (e.g. in https://github.com/ReactTraining/history/blob/master/modules/createBrowserHistory.js to find locations in the current history stack) and should be treated as an implementation detail of react-router. I suspect a random key instead of a incrementing sequence number was simply the easiest way to implement unique ids (you don't have to store the current sequence number).
answered Nov 11 at 14:06
Johannes Reuter
1,944811
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
connected-react-router simply stores the location object from react-router which in turn creates the location object using the history package. In the readme of history the key property is described:
Locations may also have the following properties:
location.key - A unique string representing this location (supported in
createBrowserHistory and createMemoryHistory)
It is used internally (e.g. in https://github.com/ReactTraining/history/blob/master/modules/createBrowserHistory.js to find locations in the current history stack) and should be treated as an implementation detail of react-router. I suspect a random key instead of a incrementing sequence number was simply the easiest way to implement unique ids (you don't have to store the current sequence number).
answered Nov 11 at 14:06
Johannes Reuter
1,944811
add a comment |
up vote
1
down vote
accepted
connected-react-router simply stores the location object from react-router which in turn creates the location object using the history package. In the readme of history the key property is described:
Locations may also have the following properties:
location.key - A unique string representing this location (supported in
createBrowserHistory and createMemoryHistory)
It is used internally (e.g. in https://github.com/ReactTraining/history/blob/master/modules/createBrowserHistory.js to find locations in the current history stack) and should be treated as an implementation detail of react-router. I suspect a random key instead of a incrementing sequence number was simply the easiest way to implement unique ids (you don't have to store the current sequence number).
answered Nov 11 at 14:06
Johannes Reuter
1,944811
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
connected-react-router simply stores the location object from react-router which in turn creates the location object using the history package. In the readme of history the key property is described:
Locations may also have the following properties:
location.key - A unique string representing this location (supported in
createBrowserHistory and createMemoryHistory)
It is used internally (e.g. in https://github.com/ReactTraining/history/blob/master/modules/createBrowserHistory.js to find locations in the current history stack) and should be treated as an implementation detail of react-router. I suspect a random key instead of a incrementing sequence number was simply the easiest way to implement unique ids (you don't have to store the current sequence number).
answered Nov 11 at 14:06
Johannes Reuter
1,944811
connected-react-router simply stores the location object from react-router which in turn creates the location object using the history package. In the readme of history the key property is described:
Locations may also have the following properties:
location.key - A unique string representing this location (supported in
createBrowserHistory and createMemoryHistory)
It is used internally (e.g. in https://github.com/ReactTraining/history/blob/master/modules/createBrowserHistory.js to find locations in the current history stack) and should be treated as an implementation detail of react-router. I suspect a random key instead of a incrementing sequence number was simply the easiest way to implement unique ids (you don't have to store the current sequence number).
answered Nov 11 at 14:06
Johannes Reuter
1,944811
answered Nov 11 at 14:06
Johannes Reuter
1,944811
answered Nov 11 at 14:06
Johannes Reuter
1,944811
answered Nov 11 at 14:06
Johannes Reuter
1,944811
1,944811
add a comment |
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