Array vs Array-Like Objects | Javascript | Frontend talks ☕
Array: Arrays are objects which can contain elements in non-negative zero-indexed elements with a length property .
Array-Like Objects: Being able to provide the ability to access elements as integer indexes and having length property, the structure is still an object, since behind the scene the indexes are actually integer-al 'keys' of that object.
In this video, I demonstrated how we can use Array instance methods, for eg, map, reduce, etc, with Array-like objects. There are number of ways of achieving this, but in this video Function.prototype.call() method is used to demonstrate.
Ref:
1. https://developer.mozilla.org/en-US/d...
2. https://developer.mozilla.org/en-US/d...
3. https://developer.mozilla.org/en-US/d...
Chapters:
00:00 Introduction to array
01:22 Introduction to 'arguments' object
05:32 Introduction to Function.prototype.call
11:36 The 'problem'
16:08 Conclusion
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