What TransformStreams are supposed to do is check for backpressure on the controller and use promises to communicate that back to the writer:
You look at a region of the image. If all the pixels are roughly the same color (below some threshold), you store the average color for the whole region as a single value. If the pixels vary too much, you split the region into four quadrants and try again.
。雷电模拟器官方版本下载对此有专业解读
青海化隆回族自治县,过去超六成农民是贫困户,化隆人决心换个活法。他们学习拉面、进城创业,在全国330多个城市、全球16个国家和地区开了2万多家面馆,一年营收上百亿元。
// Oops — forgot to call reader.releaseLock()