一看就懂的JavaScript适配器模式图解及使用示例

// 实体A
var instanceA = [{
        name: '张三',
        address: '北京',
        age: 20,
    },
    {
        name: '李四',
        address: '天津',
        age: 25,
    },
    {
        name: '王五',
        address: '河北',
        age: 30,
    }
]
// 实体B
var instanceB = function (data, name) {
    return data[name]
}
// 实体A在实体B中进行调用
console.log(instanceB(instanceA, '张三')) // undefined

var dataAdapter = function (arr) {
    return arr.reduce((accumulator, currentValue) => {
        accumulator[currentValue['name']] = currentValue
        return accumulator
    }, {})
}

console.log(instanceB(dataAdapter(instanceA), '张三')) // {"name": "张三", "address": "北京", "age": 20}