deku-memoize v1.3.0
deku-memoize
Decorator to allow components to have a shouldUpdate
method. For use with deku v2 or decca.
Usage
dekuMemoize(component)
takes in a deku Component, and returns another Component (a decorator). It will use the component's shouldUpdate
funtion to check if there are updates to be done.
import dekuMemoize from 'deku-memoize'
function render ({ props }) {
return <button>{ props.label }</button>
}
// `next` and `prev` are the parameters passed onto `render()`.
function shouldUpdate (next, prev) {
return next.props.label !== prev.props.label
}
module.exports = dekuMemoize({ render, shouldUpdate })
shouldUpdate
shouldUpdate
takes 2 arguments; both are the first parameters passed onto render()
. If it returns true
, then a render will be triggered; otherwise, render()
will not be called.
shouldUpdate
will not be called on the first render.
If shouldUpdate is not given, it will always re-render no matter what (default deku behavior).
Thanks
deku-memoize © 2015+, Rico Sta. Cruz. Released under the MIT License. Authored and maintained by Rico Sta. Cruz with help from contributors (list).
ricostacruz.com · GitHub @rstacruz · Twitter @rstacruz