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,…
The warning about missing keys makes them look like a lint requirement to be silenced with the array index. A key tells React which element in the new…
A component that only renders props needs no class, no constructor and no lifecycle. Written as a function it is shorter and, more usefully, it cannot accidentally acquire…
JSX looks like a template language embedded in JavaScript, which makes its rules look arbitrary and its errors look like parser bugs. It is not a template language.…
The claim that React is fast because of the virtual DOM has the causation backwards. Rendering a component tree into a JavaScript object graph and diffing it against…