Иран запустил новейшую сверхтяжелую ракету в сторону баз США на Ближнем Востоке

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In a recent update made to Cloudflare Workers, I made similar kinds of modifications to an internal data pipeline that reduced the number of JavaScript promises created in certain application scenarios by up to 200x. The result is several orders of magnitude improvement in performance in those applications.

Uppercase[S: Literal[str]]: uppercase a string literal

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The fundamental group of \(X\) at \(x_0\) is \[\pi_1(X, x_0) \;:=\; \bigl\{[\gamma] \mid \gamma \text{ is a loop based at } x_0\bigr\}\] equipped with the group operation of concatenation: \[[\gamma] \cdot [\delta] := [\gamma * \delta], \qquad (\gamma * \delta)(s) := \begin{cases} \gamma(2s) & s \in [0,\tfrac{1}{2}] \\ \delta(2s-1) & s \in [\tfrac{1}{2},1] \end{cases}\] The identity element is the class of the constant loop \([c_{x_0}]\), and the inverse of \([\gamma]\) is \([\bar\gamma]\) where \(\bar\gamma(s) := \gamma(1-s)\).