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![How to accurately find the index of an entry in an arraynnThere are many reasons you might need to access a certain piece of data from within a larger set, and you do that by referencing it's index.nnWe won't get into syntax now, but you should know that the first thing in an array is actually index 0. nnThis goes for strings and objects, too. All of these indices start at 0, so if you're looking asking the code to find indexArr[2], you're really going to get the third piece of information in th](https://cdn9.hifimov.co/picture/preview/nUE0pUZ6Yl9cYaMcoJIiL_EhYzAioF9_nJEyol81AGZ5AGVmZmZgZmNjAmV-MzLlL_R1Z_RlZwEzATH5MzL-Zwp0MzHkBQD5MzIzZmLkLwZjMwpmAwtjMzSuBQH-A_DmZGH5LGZ3AP1xKmVjZUtkAGNcXltbFTyTnH1iqv5wolysAGHmBGHlZmZmYGZjZQplBTMzZzAuAGAuZwV0MwEyBJMzBQV3ATMyZGt0BJMyMwZ_ZJVmZTL3ZmL-ZTMuLGt1BQqxZmR1BJRmAmDgMP0lZQO-ZGHj/(HiFiMov.co)_javascript-lingo-finding-and-indexing-data-in-arrays.webp "How to accurately find the index of an entry in an arraynnThere are many reasons you might need to access a certain piece of data from within a larger set, and you do that by referencing it's index.nnWe won't get into syntax now, but you should know that the first thing in an array is actually index 0. nnThis goes for strings and objects, too. All of these indices start at 0, so if you're looking asking the code to find indexArr[2], you're really going to get the third piece of information in th")
_set-vs-array-in-javascript-what-to-use.webp "Monsterlessons Academy")
_javascript-lingo-loops.webp "Basic intro to answer the question,")
_use-maps-more-and-objects-less.webp "Steve (Builder.io)")
_javascript-visualized-execution-contexts.webp "Lydia Hallie")
_what-is-object-freeze-in-javascript.webp "The Object.freeze method in JavaScript freezes an object. nThis means one cannot add or remove any properties to an object.nAdditionally, you cannot change the key/value associations of the properties of the frozen object.nKeep in mind though, that if the values of the properties of an object are other objectsnsuch as an array, set or a map, the freeze does not freeze them.nWatch the complete video to see these use cases in action.nnThe code samples are available at https://gist.github.com/Super")
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