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Callback Functions in JavaScript

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Using the Same Callback on Multiple Elements

2:30 with Andrew Chalkley

In this video, we'll use the same callback for multiple HTML elements.

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    replaced nameInput with messageTextArea. 0:00
    While this is fine, we have some repetition in our code. 0:03
    We have the focus handler twice and the blur handler twice. 0:07
    We can remove the repetition by moving these event handlers into 0:15
    functions with names. 0:19
    I'll create two variables, 0:21
    const focusHandler and const blurHandler. 0:25

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