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Purpose of JS in HTML

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Jul 29.2017

I have often read that the best design makes the HTML work even if JS is offline.
I can understand that,
but why have JS functions like
elem.addEventListener(click, function) statements?

If the HTML is recommended to have the actions for the onclick defined,
why bother with the JS definitions? Or this just a weak example? ?

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JavaScript

2 Comments(s) ↴

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@rootJul 29.2017 — Ultimately the onclick attributes and the addEventListner and JavaScript will only function if JavaScript is available.

Its where people have web forms and select menus that could easily be written as HTML but then are dynamically populated with JavaScript, the most obvious crack is the lack of JavaScript will mean that the client is left looking at a blank selector because it never got populated.
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@homautomationJul 31.2017 — JavaScript is a programming language that is run by most modern browsers.It can be used to control web pages on the client side of the browser, server-side programs, and even mobile applications. This language is used commonly in combination with HTML, CSS, and AJAX.
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