Fix issue 27044: input is not fired when value is changed programmati…

…cally

files/en-us/web/api/htmlelement/input_event/index.md

@@ -8,15 +8,17 @@ browser-compat: api.HTMLElement.input_event
 
 {{APIRef}}
 
-The **`input`** event fires when the `value` of an {{HTMLElement("input")}}, {{HTMLElement("select")}}, or {{HTMLElement("textarea")}} element has been changed.
+The **`input`** event fires when the `value` of an {{HTMLElement("input")}}, {{HTMLElement("select")}}, or {{HTMLElement("textarea")}} element has been changed as a direct result of a user action (such as typing in a textbox or checking a checkbox).
 
 The event also applies to elements with {{domxref("HTMLElement.contentEditable", "contenteditable")}} enabled, and to any element when {{domxref("Document.designMode", "designMode")}} is turned on. In the case of `contenteditable` and `designMode`, the event target is the _editing host_. If these properties apply to multiple elements, the editing host is the nearest ancestor element whose parent isn't editable.
 
 For `<input>` elements with `type=checkbox` or `type=radio`, the `input` event should fire whenever a user toggles the control, per the [HTML Living Standard specification](https://html.spec.whatwg.org/multipage/input.html#the-input-element:event-input-2). However, historically this has not always been the case. Check compatibility, or use the {{domxref("HTMLElement/change_event", "change")}} event instead for elements of these types.
 
 For {{htmlelement("textarea")}} and {{htmlelement("input")}} elements that accept text input (`type=text`, `type=tel`, etc.), the interface is {{DOMxRef("InputEvent")}}; for others, the interface is {{DOMxRef("Event")}}.
 
-> **Note:** The `input` event is fired every time the `value` of the element changes. This is unlike the {{domxref("HTMLElement/change_event", "change")}} event, which only fires when the value is committed, such as by pressing the enter key, selecting a value from a list of options, and the like.
+The `input` event is fired every time the `value` of the element changes. This is unlike the {{domxref("HTMLElement/change_event", "change")}} event, which only fires when the value is committed, such as by pressing the enter key, selecting a value from a list of options, and the like.
+
+Note that the `input` event is not fired when an element's `value` is changed programmatically using JavaScript.
 
 ## Syntax