如何为vuex实现带参数的 getter和state.commit
getter 带参数
参考: https://vuex.vuejs.org/guide/getters.html#method-style-access
或者: https://stackoverflow.com/questions/37763828/javascript-es6-double-arrow-functions
官方例子:
getters: {
// ...
getTodoById: (state) => (id) => {
return state.todos.find(todo => todo.id === id)
}
}使用:
store.getters.getTodoById(2) // -> { id: 2, text: '...', done: false }stackoverflow 例子:
new Vuex.Store({
getters: {
someMethod(state){
var self = this;
return function (args) {
// return data from store with query on args and self as this
};
}
}
})commit 带参数
参考; https://stackoverflow.com/questions/46097687/vuex-passing-multiple-parameters-to-action 和 https://stackoverflow.com/questions/40522634/can-i-pass-parameters-in-computed-properties-in-vue-js
就是把第二个参数,以hash的形式传过来。
// vue页面调用:
store.commit(INCREASE, {
vid: vid // 这里可以容纳更多参数
})
// store.js
const mutations = {
[INCREASE](state, data){
pair = state.pairs.find( (pair) => {
return pair.vid == data.vid // 注意这里的 data.vid 就是了。
})
}
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