document.getElementById (); // id name
document.getElementsByTagName (); // tag name
document.getElementsByClassName (); // class name
document.getElementsByName (); // name attribute values, generally do not
document.querySelector ();
document.querySelectorAll ();
document.documentElement
document.body
document.head
document.title
document.URL
the document.domain // returns the domain name server to download the current document
Get DOM elements which way
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Origin www.cnblogs.com/wuqilang/p/11204681.html
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