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dig(obj, target): any
obj
target
any
基于给定的键返回嵌套JSON对象中的目标值
https://30secondsofcode.org/object#dig
Record
string
找到的值或undefined
Example
const data = { level1: { level2: { level3: 'some data' } } }; dig(data, 'level3'); // => 'some data' dig(data, 'level4'); // => undefined