32 replies

Javascript questions

Hey, i have a few questions about javascript:

1) Why do people not recommend

onclick

onclick

but rather adding an event listener? What are the differences?

2) Given the example in the codepen, the code increments a counter when a button is clicked. Why is it that inside of the event listener, i have to wrap calling

incrementCount()

incrementCount()

in an arrow function, like so:

incrementButton.addEventListener("click", () => incrementCount())

incrementButton.addEventListener("click", () => incrementCount())

, rather than

incrementButton.addEventListener("click", incrementCount())

incrementButton.addEventListener("click", incrementCount())

for it to work? If i don't the button doesn't do anything and the count variable is automatically upped to

upon page load? https://codepen.io/deerCabin/pen/mdNVBGE

Thank you in advance.

CodePenR

javascript counter

...

KP-C

Kevin Powell - Community•2y ago•

32 replies

snxxwyy

Javascript questions

Hey, i have a few questions about javascript:

1) Why do people not recommend

onclick

onclick

incrementCount()

incrementCount()

in an arrow function, like so:

incrementButton.addEventListener("click", () => incrementCount())

incrementButton.addEventListener("click", () => incrementCount())

, rather than

incrementButton.addEventListener("click", incrementCount())

incrementButton.addEventListener("click", incrementCount())

for it to work? If i don't the button doesn't do anything and the count variable is automatically upped to

upon page load? https://codepen.io/deerCabin/pen/mdNVBGE

Thank you in advance.

CodePenR

javascript counter

...

Javascript questions

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