[英]Delete an item from an array in Redux
我正在學習redux,我想知道如何從狀態中刪除一項。 我有這個初始狀態:
export const getInitialState = () => {
let state = {
isLogged: false,
organizations: [],
userData: {},
activeIndex: -1,
currentRetrospective: {},
hasFetched: false
}
這就是數據在organizations
內部的生活方式
case `${actions.ACTION_GET_USER_ORGS}_FULFILLED`: {
let activeIndex = 0
if (state.activeIndex !== -1) {
activeIndex = state.activeIndex
} else if (action.payload.data.length === 0) {
activeIndex = -1
}
return { ...state, activeIndex, organizations: action.payload.data, hasFetched: true }
}
現在,我需要做的是從organization
的retrospectives
陣列中刪除一項。 我試過了,但是沒有用。 有更好的方法嗎?
export default (state = getInitialState(), action) => {
switch (action.type) {
case `${actions.ACTION_DELETE_RETROSPECTIVE}_FULFILLED`: {
const { organizations, activeIndex } = state
const newOrganizations = JSON.parse(JSON.stringify(organizations))
const activeOrganization = newOrganizations[activeIndex]
activeOrganization.retrospectives = activeOrganization.retrospectives
.filter((retro) => retro.id != action.retroId )
return { ...state, organizations: newOrganizations }
}
謝謝!
您可以像這樣過濾組織數組:
export default (state = getInitialState(), action) => {
switch (action.type) {
case `${actions.ACTION_DELETE_RETROSPECTIVE}_FULFILLED`: {
return {
...state,
organizations: state.organization.filter(retro =>
retro.id !== action.retroId }
}
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