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 …

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 …

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

Oct 9, 2011 · Firstly, you were comparing a DOM element itself (getElementById returns a DOM element), rather than the value of it. Secondly, you were missing the closing parentheses, and …

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 …

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 …

Javascript getElementById based on a partial string Asked 14 years, 6 months ago Modified 2 years, 3 months ago Viewed 180k times

How to make a document.getElementById value into an integer variable, not a string? Asked 13 years, 2 months ago Modified 9 years, 5 months ago Viewed 99k times

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 …