JavaScript Data Structures - 5 - Map

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JavaScript Data Structures
Data Structures in JavaScript
Map

[aligulaj]

Slight Correction here: Just a quick one at 0:13 you mentioned/defined Maps as been unordered but when it comes to the differences between Maps and Objects at 0:44 you still say that Objects are unordered . Just an observation to note.

[Ctrl_Alt_Elite]

As others have pointed out, Map's maintain insertion order

"The Map object holds key-value pairs and remembers the original insertion order of the keys"
~ MDN Docs on Map()

[arjunn]

set and map preserve the insertion order so they are ordered collections

[Roudter]

Been following you. Great stuff. Thank you very much.

[sathishbalaji]

Bro, in first slide u say map is unordered but in second slide when comparing it to objects u say maps are ordered, which is correct bro I am not Computer student pls tell bro i got perplexed

[kxnibxi]

const map = new Map([[7, 6, 5], [6, 9, 9]])
Why the output for this code is showing as 7 6, 6 9 instead of 7 6, 6 9, 5 9?

[avinashsagar]

Hi sir, I learned complete react from your channel it is wonderful. Now I am working in a tech company as a ReactJs developer Thanks you,
And please start new series on NODE-JS becouse your nodejs videos is to old

[paulbird]

I have always used a forEach, e.g. map.forEach((key, value) => { console.log(key, value)}) as far as I know is just a personal choice as an alternative to for... of. Do you have a reason for using one over the other. I look forward to learning more.

[NafeesathMusfiraBadriya]

can we use Map to implement hash table?

[davidardo]

Teacher math is imporatant to software engineer?

[sitoakujiobi]

i think there's a typo in your mad characteristics. maps are ordered and not unordered. just saying...