Uploaded August 2021 | Updated September 2026, 2 weeks ago

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This is an archive of a stream that was broadcasted live on twitch: twitch.tv/codinggarden

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## Important links

* Array - developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
* Array.prototype.indexOf() - developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
* Array.prototype.forEach() - developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
* Array.prototype.map() - developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
* Lodash - lodash.com
* for await...of - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for-await...of
* High Order Methods Playlist - youtube.com/watch?v=EXEgKu3UBQM&list=PLM_i0obccy3smFz8mGuk6g5hw0dRuyr90

## Outline

* [00:00] Stream Intro / Greetings
* [02:36] Introduction
* [07:10] indexOf(array, value)
* [13:45] forEach(array, callback)
* [20:52] lodash
* [24:17] Aside: Async in for loop vs forEach
* [34:34] map(array, callback)
* [40:04] Aside: i += 1 vs i++
* [44:59] map(array, callback) contd.
* [47:40] Aside: Arrow function vs anonymous function
* [51:40] MDN
* [52:40] forEach vs map
* [55:00] Aside: Functions and `this`
* [58:30] Closing

Contributed by: @funnyboy-roks