window.print() is the method to call the browser to print. But the default is to print the entire page of the page where the window is currently located. Is there a way to print only a certain area, or in other words, only print the elements in a certain Dom element?
function BrowserPrint (Dom){
window.document.body.innerHTML = Dom.innerHTML;
window.print();
// 打印完成以后一定要重新刷新页面,因为window被要打印的Dom取代了
window.location.reload();
}
const printDom = window.document.getElementById('content-area');
BrowserPrint (printDom);
Encountering a demand, printing the file pointed to by the iframe tag src is a bit troublesome, and it is still being explored. It may be due to cross-domain issues that make it difficult to obtain the contentWindow of the iframe, and there is no way to call the print method of the iframe subpage. Up.