yiochen / proximize

A experimental utility for accessing deeply nested JavaScript object

proximize

A experimental utility for accessing deeply nested JavaScript object

For a object like this

obj = {
  response: {
      col: [
        { header: 'first', content: 'hello world' }
        ...
      ]
  }
  ...
}

I want to be able to get a nested value without worrying about null pointer exceptions.

Usually people do

if (obj && obj.response && obj.response.col && obj.response.col[0]) {
    console.log(obj.response.col[0].header);
}

There are some tools like lodash/get, which let you do

get(obj, 'response.col[0].header');

But having all the keys in a string doesn't provide syntax highlighting.

So I want a API like this

const proxy = proximize(obj); // convert the object to a proxy
const resultProxy = proxy.response.col[0].extraData.something[1].note; // get as deep as you like
const result = unproximze(resultProxy); // if the path actually exist, it will return the value, otherwise, undefined

This project is for that