Javascript Tutorial 21 - How to sort arrays

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Here we look at sorting our arrays. We sort them in an alphabetical fashion, ascending numerically and descending numerically.

  1. Winterwind Inc.
  2. sorting arrays
  3. sort function
  4. sort method
  5. sort numerically
  6. sort array values ascending
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Комментарии
Автор

Thank you a ton! Been to two courses and although they showed numerical sorting with a-b you're the only guy who actually explained what it was for and how it worked.

miklerosswell
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Well done sir. Thanks for the concise, clear, and informative video.

awc
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this really helped i was in a challenge to make a sorting program whoever won got 5 dollars (not much but it was fun)

waporwave
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awsome video, still trying to wrap my head around this one.

DEdesigns
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I assume youre talking about the sorting array numerically. It was hard for me before too. In the end theres not much to think about, the sort method was designed to take a comparison function as an argument and the interpreter will execute it in its own way. But you can think of the function being running on all the array elements going from left to right, over and over again until its done. Anytime a - b returns a positive number the first operand (a) goes to the right, b goes to the left

AnthonyVipond
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I dont get it, how many times sort function compare a and b? If it goes 1 time the output array will look like something like this: [35, -55, 5, 112, 4, -5, -123, 123];
Or does it have some kind of loop?

Levelord
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TY, TY...
Seven minutes to explain it??? I took 7 minutes searching this video. |||| And I don't speak english, dude.
TY again.

Brunonms