如何在减速器 ReactJS 中对数组进行排序

Question

In the state.unsortedAllHighScores there will be an array output, but when I try to get that state and sort that in state.sortedAllHighScores, it stays empty? 我的预期结果将是一个数组，应该在每次调度后排序，所以当调用调度时，它应该 output 排序数组。 这是一个高分排名，所以你知道为什么我想在这里有那种 function。

 const initialState = { sortedAllHighScores: [], unsortedAllHighScores: [] }; export const game = (state = initialState, action) => { switch(action.type) { case types.HIGH_SCORE: { return {...state, unsortedAllHighScores: [...state.unsortedAllHighScores, state.updatedCurrentScore], sortedAllHighScores: [].concat(state.unsortedAllHighScores).sort((a, b) => { console.log(b - a); return b - a; }) } } }

Answer 1

你有没有这样尝试过：

case types.HIGH_SCORE: {
    const tmp = [...state.unsortedAllHighScores, state.updatedCurrentScore]
    return {
        ...state,
        unsortedAllHighScores: tmp,
        sortedAllHighScores: [].concat(tmp).sort((a, b) => {
             console.log(b - a);
             return b - a;
        })
    }
}