Alt text in images

The alt attribute is mandatory. It serves several important accessibility purposes. That’s why it is the first guideline of the Web Content Accessibility Guide (WCAG).

We all have seen the most well-known example of the purpose of alternative text: a broken image. In order to make the original intention of the image accessible even if it can’t load the image the browser displays the text as an alternative.

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Sequencing Subscriptions with RxJS

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Let’s say your web-application communicates with a 3rd party service and this service is somewhat fragile. Either because of its fragility – or for some other reason – under no circumstances do you want your application to bombard this service with concurrent requests. Whenever a component needs to make a request to this service, and there is already another request waiting for a response, the new request should wait until the previous request completes.

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Can higher education keep up with computer science interest?

Net Neutrality design from http://www.savetheinternet.comIt’s no secret that computer science careers are more lucrative than ever. Plenty of students have recognized the opportunity, but can higher education keep up?

In a New York Times article titled The Hard Part of Computer Science? Getting Into Class the author brings to light a very serious issue – universities and colleges across the country are turning away students who want to study computer science. 

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