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 …

Oct 29, 2013 · 6 You're correct in that the document.getElementById("demo") call gets you the element by the specified ID. But you have to look at the rest of the statement to figure out what …

How to make a document.getElementById value into an integer variable, not a string? Asked 13 years ago Modified 9 years, 3 months ago Viewed 99k times

getElementById returns either a reference to an element with an id matching the argument, or null if no such element exists in the document. getElementsByName () (note the plural Elements) …

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. It collects an array of …

Javascript getElementById based on a partial string Asked 14 years, 4 months ago Modified 2 years, 2 months ago Viewed 179k times

Mar 28, 2012 · I have created an object at runtime by using innerHTML tag, now I want to access this element by using getElementById, when I accessed the element its return NULL value. …

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 …

I have heard that querySelector and querySelectorAll are new methods to select DOM elements. How do they compare to the older methods, getElementById and getElementsByClassName …