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 …

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 …

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 …

Javascript getElementById based on a partial string Asked 14 years, 6 months ago Modified 2 years, 4 months ago Viewed 180k times

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.

Nov 11, 2014 · Syntax element = document.getElementById (id); where element is a reference to an Element object, or null if an element with the specified ID is not in the document. The important part …

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.

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, …

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 …

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