How to Retrieve Values from Deeply Nested Objects Using String Paths?

Retrieving Deeply Nested Object Values with a String Path

Problem:

Seeking a function that retrieves values from deeply nested objects by traversing a string path representing the nested structure. For instance:

<code class="javascript">var obj = {
  foo: { bar: 'baz' }
};
// Retrieve obj.foo.bar's value with the string "foo.bar"
getValue(obj, "foo.bar");</code>

Solution:

The following solution effectively navigates nested objects using the provided string path:

<code class="javascript">function getValue(obj, path) {
  var pathParts = path.split('.');
  for (var i = 0; i < pathParts.length; i++) {
    obj = obj[pathParts[i]];
  }
  return obj;
}</code>

Explanation:

1. The string path is split into an array of object keys (in our example, ["foo", "bar"]).
2. We iterate through the array, retrieving the value associated with each key.
3. The final result represents the value at the provided path.

Example:

<code class="javascript">var obj = {
  foo: { bar: 'baz' }
};
console.log(getValue(obj, "foo.bar")); // Output: "baz"</code>

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