Engineering

By John Sullivan Last week a mysterious double-sided puzzle appeared at Khan Academy. To solve the puzzle you must fit all four pieces inside the recessed area (the pieces will not entirely …

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By Kevin Barabash We’ve been using ES6 (along with JSX) for sometime at Khan Academy. Right now, we’re using jstransform to compile our ES6 and JSX code to ES5, but we’d like to switch to babel. …

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By Jordan Scales Today we’re releasing tota11y (on GitHub), an accessibility visualization toolkit that aims to reduce the friction of a11y testing. Inspiration Accessibility is hard for many …

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