var s = document.getElementById('This-is-the-real-id'); s.value = 'New value' How can I fix this? The element for which I am setting the value is a hidden field and the id is set dynamically, as the page …

getElementById only returns one node, but getElementsByClassName returns a node list. Since there is only one element with that class name (as far as I can tell), you can just get the first one (that's what …

Mar 23, 2017 · Explains the JavaScript method getElementById, how it works, and its applications in accessing HTML elements by their unique ID.

May 18, 2017 · Or rather, calling GetElementByID automatically returns an array when there are multiple elements with the same ID in IE, Chrome, Safari and Opera BUT not FireFox.

The getElementById method can access only one element at a time, and that is the element with the ID that you specified. The getElementsByName method is different.

89 document.getElementById() only supports one name at a time and only returns a single node not an array of nodes. You have several different options: You could implement your own function that takes …

What are the possible reasons for document.getElementById, $("#id") or any other DOM method / jQuery selector not finding the elements? Example problems include: jQuery silently failing to bind an …

Aug 19, 2009 · I can't figure out when I should use the whole "document.getElementById (e.id).value" and when I can just use "e". I'm looking at a tiny existing function in a common functions script that …

Oct 29, 2013 · document.getElementById("demo").innerHTML = voteable finds the element with the id demo and then places the voteable value into it; either too young or old enough.

Apr 28, 2013 · var start = document.getElementById('startText').value || document.getElementById('start').value; As if the input is empty, Javascript uses the value from the …