Function: dig

dig(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

Parameters

Name Type Description
obj Record<string, any> 要搜索的嵌套对象
target string 要查找的目标键

Returns

any

找到的值或undefined

Example

const data = {
 level1: {
   level2: {
     level3: 'some data'
   }
 }
};
dig(data, 'level3');
// => 'some data'
dig(data, 'level4');
// => undefined
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