π‘ First-class citizens :
* It's not used in practice(during coding).
* It's a logical concept.
π‘ Higher order function:
* It's used in practice.
* It's a physical concept that can be coded.
π‘ Higher-order functions are only possible because of first-class citizen/function.
* It's not used in practice(during coding).
* It's a logical concept.
π‘ Higher order function:
* It's used in practice.
* It's a physical concept that can be coded.
π‘ Higher-order functions are only possible because of first-class citizen/function.
Here:
- addEventListener : higher-order function, because it takes the "callBackFun" function as an argument.
- callBackFun: this is known as a callback function.
π‘ A function that we pass as an argument to another function is called a callback function.
- addEventListener : higher-order function, because it takes the "callBackFun" function as an argument.
- callBackFun: this is known as a callback function.
π‘ A function that we pass as an argument to another function is called a callback function.
- We can return a function from another function because we treat a function in JavaScript as a value.
Here:
- The "welcome" function is a higher-order function because it returns an anonymous function.
- welcome("Hello") -> function
- welcome("Hello")("Ajay") -> function
Here:
- The "welcome" function is a higher-order function because it returns an anonymous function.
- welcome("Hello") -> function
- welcome("Hello")("Ajay") -> function
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That's all for now, we will meet in the next threadπ
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For:
π Web Development
β¨ JavaScript
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π₯ Motivation
πΉ Growth
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Thank you so much for staying to the end of this threadπ
π Follow Me @ATechAjay
For:
π Web Development
β¨ JavaScript
π Writing Skill
π₯ Motivation
πΉ Growth
β But Not For Only Resources & Shitpost π
Thank you so much for staying to the end of this threadπ
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