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The "_.map() Solution" Lesson is part of the full, JavaScript: From Fundamentals to Functional JS, v2 course featured in this preview video. Here's what you'd learn in this lesson:

Bianca walks through the solution with the help of students. Bianca takes questions from students.

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Transcript from the "_.map() Solution" Lesson

[00:00:00]
>> Bianca Gandolfo: We were given the task of taking the weapons list and breaking them off using map. So first things first, let's just bring up map. How do we do that? The first thing that it's expecting is a list, and the second thing is a callback function.
>> Speaker 2: Weapons.

[00:00:22]
>> Bianca Gandolfo: Yep, weapons, and then what's the callback function?
>> Speaker 2: Function-
>> Bianca Gandolfo: Yeah, the makeBroken one. So what is this gonna return?
>> Bianca Gandolfo: What if I did this?
>> Speaker 2: An array?
>> Bianca Gandolfo: Yep.
>> Speaker 2: Well, can we do it as array?
>> Bianca Gandolfo: Yeah.
>> Bianca Gandolfo: Woo-hoo, so it's an array. What's gonna be in the array?

[00:01:03] How about, anyone? We're almost there. We're almost to the end.
>> Speaker 2: Broken candlestick, broken leadpipe, and broken revolver.
>> Bianca Gandolfo: Yep.