javascript - Assign nested object to object JS -


this might have been asked before, didn't see question:

is there way declare object in javascript such can directly assign values in multiple levels of nesting (without declaring each level along way)?

example:

var obj = {}; obj["key1"]["key2"]["key3"] = "value"; obj["key1"]["key4"]["key5"] = "value2;

the above doesn't work me, since i'm creating object dynamically, creating each level along way each key costly i'd have check existence first..

ie:

if (!obj["key1"]) obj["key1"] = {}; elseif (!obj["key1"]["key2"]) !obj["key1"]["key2"] = {}; ... etc

i hope makes sense.

it doesn't make sense way.

i sure need in special case, recommend review purposes , use helper function instead.

for example, setproperty(targetobj, path, value) path plain list ['key1', 'key2'], can check existence there.

also, can combine set of keys if makes sense. obj[key1 + '_' + key2]. easy write helper getter , setter case.

p.s. again, don't want go way. if value must accessed set of keys, 1 combined key. don't make complex.


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