Eminent mathematicians including Niels Abel, Augustin-Louis Cauchy, and Karl Weierstrass recognized that to comprehend the unusual series and curves appearing in their research, they must revisit fundamental definitions. What constitutes a function? What signifies functional continuity? What truly occurs when summing infinite elements?
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，这一点在chrome中也有详细论述
Right here, right now, I’m not going to get into a deep debate about how to define “unit” versus “integration” tests or which types you should be writing. I’ll just say that historically, libraries which make HTTP requests have been some of my least favorite code to test, whether as the author of the library or as a user of it verifying my usage. Far too often this ends up with fragile piles of patched-in mock objects to try to avoid the slowdowns (and other potential side effects and even dangers) of making real requests to a live, remote service during a test run.
大量“简单”工具似乎仅得到部分支持或半成品状态，这种情况令人惊讶，且似乎造成了巨大的重复劳动。过去四十年围绕X11开发的工具链似乎已被完全抛弃，且未提供替代方案。Wayland非但未提供清晰的过渡路径，反而引入了更多的碎片化。