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And this lecture.

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Let's take a look at what a clone is.

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So if we want to actually take the value of a variable without taking ownership, we can perform a clone

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which performs a deep copy.

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And what this is going to do is it's going to take the values from the variable we are referencing and

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copy them into a new variable.

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Doing a clone may be expensive, but let's check out how it works.

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So I'm going to take all this code.

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I'm a copy it and then I'm going to comment it out up here and we're just going to print it down here.

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So it's going to we have the same thing so far, but now we want to do a clone on X and then we want

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to clone on Y.

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So now if we do this and you know what, let's actually go ahead and let's let's print out all of them

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real quick just to make sure that everything works.

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So we created our our vector with just the Tyler string in it.

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We told Y to be a clone of X and we told Z to be a clone of y, which was a clone of x.

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So now when we run this.

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We see Tyler, Tyler, Tyler.

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So what this means is, is we completed a deep copy of X and we were able to assign the string of Tyler

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to Y and Z.

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So now, as you can imagine, this can be a very expensive operation.

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Imagine if you have a vector with hundreds of thousands of values in it and then you try to clone it.

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It's going to clone every single value inside that vector into the new variable.

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So as you can imagine, it is an expensive operation to do.

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But.

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Let's look at what a copy is in the next lecture.