A version 2 file could share a container’s volumes with volumes_from, which is how the data-container pattern worked. Version 3 removes it, because a scheduler placing containers on…
After=network.target means the networking stack has been configured, not that an interface has an address — so a service binding to a specific IP fails at boot and…
webpack wraps every module in a function, which costs a closure per module at parse and at runtime. Scope hoisting concatenates modules that can safely share a scope…
The rule that makes aggregates useful is that one transaction touches one aggregate. Everything else follows: what belongs inside, what is referenced by id, and where consistency is…
Reading the last character of a string has been $s[strlen($s) – 1] for two decades, which computes the length to throw it away and reads badly next to…
Before 16, an exception during render left React in an inconsistent state and the usual advice was to let it crash. 16 unmounts the whole tree by default,…
Every clause in a query context computes a relevance score, including the ones that are yes-or-no questions — in stock, in this category, under this price. Scoring them…
Marking a function async changes its return value regardless of what the body does, which is obvious stated plainly and is the source of most confusion about them.…
Six services that must be released together, share a database and call each other synchronously have every cost of distribution and none of the benefit. It is the…