Recently, we found that the document. getelementbyid method is used to obtain the validity rate of many TD objects.
It will be very low. I counted the time. Taking 1000 Td as an example, if we use document. getelementbyid to traverse and update the content in TD, it will take 2 seconds left.
Right, if you directly use the rows and cells attributes in the Dom to traverse data, the efficiency will be improved by at least five times. It seems that the HTML interface processing is really time consuming. Try not to use
Document. getelementbyid: traverses the original table with a large number of cells. ArticleIf you reprint it, please note: reposted from your blog
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