JAVASCRIPT 简化版数据库--智能编程——仙盟创梦IDE

// 数据模型class 仙盟创梦数据DM {constructor(key) {this.key = `${STORAGE_PREFIX}${key}`;this.data = this.加载数据();}加载数据() {return JSON.parse(localStorage.getItem(this.key)) || [];}保存() {localStorage.setItem(this.key, JSON.stringify(this.data));}新增(item) {this.data.push(item);this.保存();return item;}更新(id, updatedItem) {const index = this.data.findIndex(item => item.id === id);if (index !== -1) {this.data[index] = { ...this.data[index], ...updatedItem };this.保存();}return this.data[index];}删除(id) {this.data = this.data.filter(item => item.id != id);this.保存();}读取(id) {// return this.data.find(item => item.id === id);return this.data.find(item => item.id == id);}}

使用方法

 初始化数据管理器
        const 职员 = new 仙盟创梦数据DM('职员');

读取

  const employee = employees.get(record.employeeId) || { name: '未知职员' };

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