One call turns on three separate checks that each convert a silent misbehaviour into an exception. The third is the one with the largest immediate yield, because a…
React 17 batched state updates inside event handlers and not inside promises, timeouts or native handlers; 18 batches everywhere. Fewer renders is the intended benefit and the breakage…
The dependencies are collected by running the function, so a conditional branch that was not taken on the first run is not tracked. Automatic tracking is convenient and…
An effect listing a value in its dependencies and setting that value in its body is an infinite loop, and the analyser that suggested adding the dependency is…
__set is only called for inaccessible or undefined properties, so declaring the property you meant to intercept disables the magic silently. The private case is the one that…
A formatted message is a string a machine has to parse back, and every parser is a regular expression somebody will break. The message becomes a stable event…
A slow endpoint returning a 504 through nginx has three different timeouts that could be responsible, and they are configured by different directives. The distinction between a 502…