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const getIn = (obj, path, defaultValue) => { | |
var _path = path.split('.'); | |
var _obj = Object.assign({}, obj); | |
var head; | |
while(typeof _obj == 'object' && _path.length > 0) { | |
[head, ..._path] = _path; | |
_obj = _obj[head]; | |
} | |
return _obj || defaultValue; | |
} | |
var object = { 'a': [{ 'b': { 'c': 3 } }], 'b': [{a: 'a'}] }; | |
console.log(getIn(object, 'a.b.c', 'default')); | |
// => 'default' | |
var object2 = {a: { b: { c: 3 } } }; | |
console.log(getIn(object2, 'a.b.c', 5)); | |
// => 3 | |
console.log(getIn(object2, 'a.b.d', 5)); | |
// => 5 | |
// Credits @gilesbradshaw => destructuring is insane => https://gist.github.com/mikaelbr/9900818 |
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