Function Declarations VS Function Expressions in JavaScript

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JavaScript provides 2 methods for defining a function: the function declaration and the function expression. In this video we examine the difference, which includes hoisting and the emphasis on first class functions. We also take a look at when you might want to use a named function expression as opposed to an anonymous function expression.

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for the first time I understand hoisting. thanks

alimfuzzy
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Make this channel famous!
Don't stop making videos!

jonsnow
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Thank you! Great tutorial. Love how you extract the code first and then use it as an example. Thank you definitely suits my style of learning.

ChrisTian-oxnr
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Simple, clear explanations with practical examples, can't beat that, great video

sonnychiba
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Very clear tutorial on Function Declarations vs Function Expressions. Thank you.

{2021-9-17}

Pareshbpatel
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You said when we want use an IIFE should use expression function, but i tried with functions declarations and did works. Samething in functions by parameters

RafaelSFTech
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Solid explanation. The audio was good enough for me!!

appleqor
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closures and callbacks would be helpful; thank you for your contributions

webstuff
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Thanks, great video. One question:
Technically, we could have also created a function declaration, and then passed that function as an argument inside of RunIt function. But I guess that's just too much redundant code...

rastkogojgic
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There was some issue with the audio, but regardless great explanation as always

kineticBoss
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Thank you! I can now finally see the light <3

AndreGMendes
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I feel very thankful because this is the exact explanation that I need

germanduterte
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it's a good explain video, thank you

huylearning
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Very good video, but next time check audio quality. :)

doktora
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Great content! But I have a doubt. Is a function expression an executable statement? Can you please elaborate on this? Thanks in advance.

arijitbanerjee
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Dude thank you for saving me from this headache i got for trying to understand the difference between these two.

exikoz
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I knew hoisting but couldn't relate that hoising actually created a diff b/w anonymous and named functions

Good job stating that :D

siddisking
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Could you go over the meaning of the 'this' keyword in function declarations and in function expressions? Particularly for declarations (methods) and expressions in an object? Could you also clarify how an arrow function changes the meaning of 'this' in each of those contexts? Great video, thank you.

spongechameleon
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Wow, easily explained, super helpful. I can't wait to watch your other videos.
Also, does it make sense that function expression is more efficient with computer memory? Because it is not already defined before the execution phase?

amirhosseinbidokhti
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Could you please create a video on currying && pure functions. Or a series over functional programming in JS.

mukeshchouhan