Function _copyAttributes

src/core/runtime/morph.js:194–209

(destination, source)

}

function _copyAttributes(destination, source) {
    for (var attr of source.attributes) {
        if (destination.getAttribute(attr.name) !== attr.value) {
            destination.setAttribute(attr.name, attr.value);
            if (attr.name === "value" && destination instanceof HTMLInputElement && destination.type !== "file") {
                destination.value = attr.value;
            }
        }
    }
    for (var i = destination.attributes.length - 1; i >= 0; i--) {
        var attr = destination.attributes[i];
        if (attr && !source.hasAttribute(attr.name)) {
            destination.removeAttribute(attr.name);
        }
    }
}

function _isSoftMatch(oldNode, newNode) {
    if (!(oldNode instanceof Element) || oldNode.tagName !== newNode.tagName) return false;