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I'm looking for a way to remove the entire content of a web page using pure Javascript -- no libraries.
I tried:
document.documentElement.innerHTML = "whatever";
but that doesn't work: it replaces the inside of the <html/> element. I'm looking at replacing the entire document, including if possible the doctype and <?xml declaration.
846
I think a browser rightfully assumes a page with content-type text/html will always be a web page - so whilst you may do something like...
document.body.innerHTML = '';
It will still have some HTML hanging around.
You could try...
document.documentElement.innerHTML = '';
...which left me with <html></html>.
Yi Jiang did suggest something clever.
window.location = 'about:blank';
This will take you to a blank page - an internal mechanism provided by most browsers I believe.
I think however the best solution is to use document.open() which will clear the screen.
143
var i = document.childNodes.length - 1;
while (i >= 0) {
console.log(document.childNodes[i]);
document.removeChild(document.childNodes[i--]);
}
Removes everything (doctype also) on FF 3.6, Chrome 3.195, and Safari 4.0. IE8 breaks since the child wants to remove its parent.
Revisiting a while later, could also be done like this:
while (document.firstChild) {
document.removeChild(document.firstChild);
}
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