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Lodash _.entries

Overview

The _.entries method in lodash is a powerful tool for working with objects. It is used to convert an object into an array of key-value pair arrays. The returned array contains all own and inherited enumerable string keyed properties of the object including symbols.

This method takes a single argument, which is the object to be converted. The object can be a plain object, an array-like object, or any other kind of object that has enumerable properties.

The syntax of the _.entries method is as follows:

_.entries(object)

Here, object is the object to convert.

The _.entries method loops through all own and inherited properties of the object and creates an array containing key-value pairs of each property. The keys are the property names and the values are the corresponding property values.

The resulting key-value pair arrays are returned as an array of arrays, where each sub-array contains two elements - the key and the value.

Here is an example of how to use the _.entries method:

const object = { a: 1, b: 2, c: 3 };
const result = _.entries(object);

console.log(result);
//Output: [["a", 1], ["b", 2], ["c", 3]]

In this example, the _.entries method is used to convert the object into an array of key-value pairs.

It is important to note that the order of the key-value pair arrays is not guaranteed with _.entries. This is because objects in JavaScript do not have a guaranteed order for their properties.

In conclusion, the _.entries method is a powerful tool for working with objects in JavaScript. It can be used to convert objects into a more easily manageable form that can be iterated over using methods like _.forEach, _.map and _.reduce.