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chain-get-value

v1.0.3

Published

使用链式调用的方式获取对象某个字段的值

Downloads

4

Readme

Usage

import getValue from '@jizhi/get-value';

const obj = {
    a: {
        b: 123,
        c: null,
        d: [1, 2, 3],
        e: ''
    }
};

getValue(obj)('a')('b')()  // 当有值时返回对应值
getValue(obj)('a')('b')('d')()  // 当获取不存在的字段时返回 undefined
getValue(obj, [])('a')('b')('d')()  // 使用第二个参数设置返回值,取不到时返回第二参数的值 []
getValue(obj, [])('a')('c')()  // 当有字段,但是字段为 null 或 undefined 时,也返回指定的返回值 []
getValue(obj, [])('a')('d')(0)()  // 返回1,可以在数组中使用
getValue(obj, [], '')('a')('e')()  // 如果取到的值是 undefined 或与第三个参数 '' 相同,则返回第二个参数 []