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flat

Take a nested Javascript object and flatten it, or unflatten an object with delimited keys

  • 6.0.1
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What is flat?

The flat npm package allows for flattening and unflattening complex nested objects and arrays in JavaScript. It can be used to convert deeply nested objects into a single level object with dot-separated keys, or to expand a flat object with dot-separated keys back into a nested structure. This can be particularly useful when dealing with data that needs to be stored in a format that doesn't support nested structures, such as certain databases, or when you need to simplify the structure of data for processing or transmission.

What are flat's main functionalities?

Flatten

Converts a nested object into a flat object with dot-separated keys. In the code sample, the 'flatten' method is used to transform the 'original' object into a single-level 'flattened' object with keys like 'b.c' and 'b.d.e'.

{"original": {"a": 1, "b": {"c": 2, "d": {"e": 3}}}, "flattened": flat.flatten({"a": 1, "b": {"c": 2, "d": {"e": 3}}})}

Unflatten

Converts a flat object with dot-separated keys back into a nested object. In the code sample, the 'unflatten' method is used to transform the 'flattened' object back into its original nested structure.

{"flattened": {"a": 1, "b.c": 2, "b.d.e": 3}, "unflattened": flat.unflatten({"a": 1, "b.c": 2, "b.d.e": 3})}

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Package last updated on 19 Sep 2023

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