How can components be displayed or hidden from other components in ReactJS?

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In ReactJS, components can be displayed or hidden from other components by using conditional rendering. This is done by including a conditional statement within the JSX code for the component.

For example, to display a component based on a certain condition, we can use the ternary operator as follows:

{isDisplayed ? <Component /> : null}

Here, if the isDisplayed variable is true, the component will be rendered. Otherwise, it will not be displayed.

Similarly, to hide a component based on a certain condition, we can use the same conditional statement, but with a different flag. For instance, to hide the component when isHidden is true:

{isHidden ? null : <Component />}

Here, if isHidden is true, the component will not be rendered. Similarly, if it is false, the component will be displayed.