javascript-quiz | : interrobang : A quiz about JavaScript created with HTML | Animation library
kandi X-RAY | javascript-quiz Summary
kandi X-RAY | javascript-quiz Summary
:interrobang: A quiz about JavaScript created with HTML, CSS, and JavaScript. So meta!
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QUESTION
I am making a quiz as a part of larger quiz website. The basic idea is that when a user clicks on an answer with text generated by the questions object, the associated 'type' string in the object is added to the state 'score' array. At the end, I use a for loop to determine which answer string was most frequently chosen, giving the result.
My problem is that the score array won't fill correctly with those strings, and i'm not entirely sure what is going on. I know you shouldn't try to alter the state directly, and should either do your conversion outside of the setState, or use iteration.
When I try to use iteration though - A.K.A something like this:
...ANSWER
Answered 2020-Apr-22 at 21:46Two issues I see:
reset()
you are settingscore
to0
, which will have noArray.prototype
methods.- Using the return value of
Array.prototype.push
. That returns the length of the new array as an int, not the entire array. If you're assigningthis.state.score
to the result ofpush
anywhere, even just once, it will cause the issue as well: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push
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