redux Actions may not have an undefined “type“ property. Have you misspelled a constant?
react-redux 報錯
Actions may not have an undefined "type" property. Have you misspelled a constant?
出現類似的錯誤,很大機率是因為redux 操作action動作時候的type 名稱問題
檢查action 中的type 是否和reducer 操作中的type 名稱是一致
兩處用到的 type 需要一致 //./action.js // 型別為type:types.USER export const userAction=(data)=>({type:"型別名稱",data}); // ./reducer.js let token =null; export default function Token(_token=token,action){ //解構中的type用來做判斷條件 const {type,data}=action; switch(type){ case "判斷條件": return data; default: return _token; } }
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redux Actions may not have an undefined “type“ property. Have you misspelled a constant?
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