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I’m so so sorry asking this very repetitive question again, yet as I searched the previous answers I could not find any solutions. In the code below, my browser returns : Uncaught TypeError: Cannot set property ‘innerHTML’ of undefined as I click an the generated links. Would you be kind to help me out? Thank you very much in advance.
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- marked as duplicate by Barmar javascript Users with the javascript badge can single-handedly close javascript questions as duplicates and reopen them as needed. Jul 25 ’14 at 11:20
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marked as duplicate by Barmar javascript Users with the javascript badge can single-handedly close javascript questions as duplicates and reopen them as needed. Jul 25 ’14 at 11:20
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
есть на вашей странице?
Без верстки трудно сказать.
Ошибка скорее всего заключается в том, что не удаётся найти элемент hours
I’m trying to write a pretty simple script to set an element’s innerHTML to the time. However, Javascript keeps throwing a «Cannot set property ‘innerHTML’ of undefined» error. During debugging, I’ve simplified my script to the point that it runs right after element (a ) is coded, so I know it should have loaded already. I’ve also tried running this script as a argument — same error. I can’t tell what I’m doing wrong.
Any help is appreciated!
4 Answers 4
You are not calling getElementById , you are attempting to index it. Since it is not an array and does not expose array-like behavior, the result is undefined . Replace your getElementById[spanId] with getElementById(spanId) .
[] instead of () in document.getElementById(spanid) . getElementById is function, it has to be invoked with () and pass the parameter inside it.
Also missing () after getSeconds()
And now that you have this fixxed add this:
And you have an actual clock 😀
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