Modifying Vector Elements

In the previous exercise, we learned how to access vector elements using their indexes. Now we'll see how to update the values of these elements.

Changing a vector element is simple. We use the same notation we used to access elements, and assign a new value using the = operator, just like we would assign a value to a variable.

Let's look at an example:

std::vector newYearResolutions = {"Write a diary", "Take a falconry course", "Learn to juggle"};

Imagine we want to change the second resolution. We use the following code, where we insert a new element at index 1:

newYearResolutions[1] = "Take a painting course";

Now the vector newYearResolutions will look like this:

{"Write a diary", "Take a painting course", "Learn to juggle"}