javascript-lodashHow do I perform a deep copy using Lodash in JavaScript?

To perform a deep copy using Lodash in JavaScript, we can use the _.cloneDeep() method. This method will create a deep copy of the given value, meaning that the original and the copy will not share references.

Example

const originalObj = {
    a: 1,
    b: {
        c: 2
    }
};

const deepCopy = _.cloneDeep(originalObj);

console.log(originalObj);
// { a: 1, b: { c: 2 } }

console.log(deepCopy);
// { a: 1, b: { c: 2 } }

In this example, we have an object originalObj that contains two properties, a and b. We then use the _.cloneDeep() method to create a deep copy of the object, assigned to the variable deepCopy. The output of the console.log statements reveals that both originalObj and deepCopy are the same, meaning that the deep copy was successful.

Parts of the code and explanation:

• const originalObj = {...}: this is the original object that we want to make a deep copy of.
• const deepCopy = _.cloneDeep(originalObj): this is where we use the _.cloneDeep() method to create a deep copy of originalObj.
• console.log(originalObj): this line logs the original object to the console.
• console.log(deepCopy): this line logs the deep copy of the original object to the console.

Helpful links

• Lodash Documentation - cloneDeep

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