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 …

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

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

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 exactly the …

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 finally, …

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 …

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 …

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.

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 in terms of …

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.