通过 Javascript 将 IFRAME 添加到 DOM

Question

I want to add an iframe to the page. This iframe should refer to a URL. I added the below code to page HTML, but it doesn't work:

document.createElement('<iframe src='http://example.com'></iframe>');

Answer 1

Here you go:

var iframe;

iframe = document.createElement('iframe');
iframe.src = 'http://example.com/file.zip';
iframe.style.display = 'none';
document.body.appendChild(iframe);

Live demo: http://jsfiddle.net/USSXF/2/

Your code doesn't work because you're passing an entire HTML string into the createElement function ("jQuery style" :) ), which is invalid. The valid parameter for this function is a string representing the tag-name (like 'div' , 'iframe' , 'p' , etc.).

Read about document.createElement here.

Answer 2

You need to append the node to the DOM using document.appendChild

You also need to escape your inner single-quotes or use double-quotes instead.

Answer 3

document.write(unescape('%3Ciframe src="//example.com/file.zip"%3E%3C/iframe%3E')