cookie的增删查改原生

操作cookie的增删查改

let cookie = {
    
    
    // 写入/修改cookie
    set(key, value, expires) {
    
    
        if (typeof expires === "number") {
    
    
            let date = new Date();
            date.setDate(date.getDate() + expires)
            document.cookie = `${
      
      key}=${
      
      value};expires=${
      
      date}`;
        } else {
    
    
            let d = new Date(expires);
            document.cookie = `${
      
      key}=${
      
      value};expires=${
      
      d}`;
            //  }
        }
    },
    // 读取cookie
    get(key) {
    
    
        let arr = document.cookie.split("; ")
        var result = {
    
    }
        arr.forEach(item => {
    
    
            let key = item.split("=")[0];
            let value = item.split("=")[1];
            result[key] = value;
        })
        return key ? result[key] : result;
    },
    // 删除cookie
    remove(key) {
    
    
        if (this.get(key)) {
    
    
            document.cookie = key + "=18;expires=" + new Date('1999-09-09');
            return true;
        } else {
    
    
            return false;
        }
    }
}
//使用时直接调用
// 示例
//cookie.set("username",$("#username").value,30)