Map data structure & ES6 map object - Beau teaches JavaScript
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Date: 2022-03-14
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Comments and reviews: 8
Aleksandr
So, the benefit of Map is that you can use key not only String or Symbol. But in your example you use Object as as collection to store key:value. It's wrong implementation. You need to use array as collection with item -key: key, value: value-
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So, the benefit of Map is that you can use key not only String or Symbol. But in your example you use Object as as collection to store key:value. It's wrong implementation. You need to use array as collection with item -key: key, value: value-
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Seth
This is entirely incorrect. A map is not a javascript object. You would not, for example, be able to use a function as a key in your implementation. This is a very naive and very wrong tutorial. You should take this video down.
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This is entirely incorrect. A map is not a javascript object. You would not, for example, be able to use a function as a key in your implementation. This is a very naive and very wrong tutorial. You should take this video down.
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Good
Very good explanation. Thank you teacher.
There might be one issue. It is the count++ in set method.
If we add item with existing key, it should not increment the count.
My CA$ 0.02. ;)
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Very good explanation. Thank you teacher.
There might be one issue. It is the count++ in set method.
If we add item with existing key, it should not increment the count.
My CA$ 0.02. ;)
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Antonio
Hello, why do you make a size function (the one that returns the variable count), can't you just call the variable count directly?
don't myObj.count and myObj.size() return the same value?
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Hello, why do you make a size function (the one that returns the variable count), can't you just call the variable count directly?
don't myObj.count and myObj.size() return the same value?
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grantpant2353
Your typing speed literally makes my head spin. I don't think I can even make my fingers moves that fast. You're an android, aren't you?
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Your typing speed literally makes my head spin. I don't think I can even make my fingers moves that fast. You're an android, aren't you?
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anant
Couldn't understand a single thing after watching it thrice. Rushing through the code without explaining anything. By far the worst explanation.
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Couldn't understand a single thing after watching it thrice. Rushing through the code without explaining anything. By far the worst explanation.
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James
These tutorials are excellent! The length is perfect and seeing a new concept or an old one in a different context is so useful. Thanks!
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These tutorials are excellent! The length is perfect and seeing a new concept or an old one in a different context is so useful. Thanks!
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Rohan
I am facing problems for using these new syntax of ES6... can't remember syntax at the time of programming... what to do?
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I am facing problems for using these new syntax of ES6... can't remember syntax at the time of programming... what to do?
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