INNER CODE UNIT · JavaScript
createSingletonNode
in28minutes/spring-microservices-v3 · 99.presentation/js/reveal.js:788
function createSingletonNode( container, tagname, classname, innerHTML ) {
// Find all nodes matching the description
var nodes = container.querySelectorAll( '.' + classname );
// Check all matches to find one which is a direct child of
// the specified container
for( var i = 0; i < nodes.length; i++ ) {
var testNode = nodes[i];
if( testNode.parentNode === container ) {
return testNode;
}
}
// If no node was found, create it now
var node = document.createElement( tagname );
node.classList.add( classname );
if( typeof innerHTML === 'string' ) {