The Writer is not a concrete class. Any object that implements write(), end(), and abort() can be a writer making it easy to adapt existing APIs or create specialized implementations without subclassing. There's no complex UnderlyingSink protocol with start(), write(), close(), and abort() callbacks that must coordinate through a controller whose lifecycle and state are independent of the WritableStream it is bound to.
Organ donation: 'Mum said we don't do it. So we don't'
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Technology Secretary Liz Kendall said: "The days of tech firms having a free pass are over... no woman should have to chase platform after platform, waiting days for an image to come down".
Pull-through transforms
Not Equal: Every domino half in this space must have a completely different number of pips.