javascript - Is there some innerHTML replacement in SVG/XML?

Question

In HTML I can build a simple templating system by providing a template in form of a string, replace some parts of it and then assign it using innerHTML to some container.

var templ = '<span>{myText}</span>'
var newContent = templ.replace( '{myText}', someVariable );
document.querySelector( '#myContainer' ).innerHTML = newContent;

This way I can take advantage of the browser's HTML parser and do not have to repeatedly use document.createElement(). The later can be quite cumbersome, if the templates grows beyond a few elements.

In SVG, however, there is no property on the elements as innerHTML or even innerSVG for that matter.

So my question is: Is there anything I can use in SVG ro resemble the approach from the example above or am I stuck with document.createElement() (or respectivly some lib that uses it)?

_{As always with my questions: Vanilla JavaScript solutions are preferred, but any pointer to a lib providing a solution is appreciated.}

Answer 1

You can use DOMParser to parse XML. You can then use importNode to get that into your existing document if you want via importNode to end up with something like this...

var doc = new DOMParser().parseFromString(
   '<svg xmlns="http://www.w3.org/2000/svg"><circle cx="100" cy="100" r="20"/></svg>',
   'application/xml');

someElement.appendChild(
 someElement.ownerDocument.importNode(doc.documentElement, true));