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With the following codes
As soon as I load the page in the browser is already displayed the result in the console
Is this standard for Avascript or is there something wrong with my code? How to resolve?
1 answer
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The function addEventListener expects two parameters - the event you want to listen to, and the function that should be executed when it is fired - the first you passed correctly, the second, not. When you do teste(), you are calling the function (calling it). In this case, what you want to do is pass the function itself instead.
button.addEventListener('click', test)
Now, we are passing the function as argument, and it will only be called when the event is triggered.
Browser other questions tagged javascript html javascript-events
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– Icaro Martins
About your problem, note that in this code snippet
btn.addEventListener('click', teste() )you are running the functionteste()and passing as parameter the return of it, that is , null– Icaro Martins