从数组创建动态对象

Question

I want to generate a dynamic object and assign value into it. Following is the code

var chunk = "INTERNATIONALISATION#LANGUAGE#DICTIONARY#EN";
var c = chunk.split('#');
var a = {};

So the output should be like this

a["INTERNATIONALISATION"]["LANGUAGE"]["DICTIONARY"]["EN"] = 10;

Tried looping through array but nothing works for now.Please advise.

Answer 1

Try this:

var chunk = "INTERNATIONALISATION#LANGUAGE#DICTIONARY#EN";
var c = chunk.split('#');
var a = {};
var lastKey = c.pop();
c.reduce((obj, key) => obj[key] = obj[key] || {}, a)[lastKey] = 10;

To make it more convenient you can put it in a function:

const dynamicAssign = (object, stringPath, value) => {
    const path = stringPath.split('#');
    const lastKey = path.pop();
    const target = path.reduce((obj, key) => obj[key] = obj[key] || {}, object);
    target[lastKey] = value;
};

const a = {};
dynamicAssign(a, "INTERNATIONALISATION#LANGUAGE#DICTIONARY#EN", 10);