What is a w3 widget [closed] - html

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I've recently run into this in a project of mine and I'm really surprised that I've never heard of this thing at all ever. What is a W3 widget?
The documentation for a w3 widget is here:
http://www.w3.org/TR/widgets/
Which forgive me for saying doesn't make any sense at all. Could someone provide a tl;dr version of what a W3 widget is?

This has already been answered in a previous question, can't add a duplicate notice so leaving in here:
"A widget is just a small piece of code or functionality that does only one thing."
See this answer:
What exactly defines a "widget"?

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Is Ragel a declarative way of regexp or it has more than that? [closed]

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I was reading an HTML parser article and noticed that they used Ragel for parsing a web page. Is it because it is more readable than using regexp or there is a different meaning behind it?
I read several things about Ragel, but they were too complex for my understanding. It would be cool if somebody gave an example of Ragel.

Problems adding chatvoice in html [closed]

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I've been working on a website for about 5 months and i have been testing a lot of features like
posts, downvotes and upvotes, etc
One the features was chatvoice
The problem is that i haven't found any relevant information about making chatvoice a thing in an html website
I believe you asking how to convert speech to text (Speech recognition). You can use python Library for performing speech recognition, with support for several engines and APIs, online and offline.
Please find this link for installation.

How to use 2 conditions in an if statement in html [closed]

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I've looked everywhere Google leads me and found no answers. Help? Also, another question is how do I make a condition to check whether a textbox is filled with something or is left blank. I'm sorry for the n00b questions. I'm really new to html and programming in general. Thanks!
HTML is a markup language and doesn't have if statements. You'd need to use JavaScript to check whether something has a value.
Check out MDN's article on if...else for more information.

What is manifest in HTML5 ? and how to use it? [closed]

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I want the page visible to the user even when the net connection breaks so is there a way to
store the page for atleast some time.
Describing the cache manifest in an SO answer will take a lot of space. Instead of doing that, I'm going to save everyone some time and post a tutorial for you: http://www.html5rocks.com/en/tutorials/appcache/beginner/
StackOverflow is better suited if you have trouble understanding a specific part of cache manifests.

How to detect advertisement link? [closed]

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I want to detect the links in page which are used for advertisement. Or is there any statistical data by which I can guess this link is for advertisement?
I know this isn't a concrete answer, but if I were doing the same, I'd take a look at AdBlock and other add-ons in browsers such as Firefox since they do much the same. There are quite a few open source add-ons out there where you can view the code that does this. And even most email programs detect junk mail (and ads) using Bayesian filters which I'm sure with a bit of tweaking would work well.