Fix edge case with rendering children as number 0 #18
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developit
reviewed
May 23, 2019
| while (stack.length) { | ||
| let child = stack.pop(); | ||
| if (child) { | ||
| if (child !== undefined && child !== null) { |
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This would allow <div>{true}</div> to render <div>true</div>. Do we want that? The VDOM libs ignore booleans.
In any case, this statement can compress to:
Suggested change
| if (child !== undefined && child !== null) { | |
| if (child != null) { |
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It also allowed it before so we could leave as is or correct it, up to you. The shorter version while shorter is not explicit, it's better to always use the === and !== operators. Just my thoughts.
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I would concur with @dburles that being more explicit is often clearer. Also on the <div>{true}</div> debate mimicking the behaviour of React/Preact etc. seems intuitive.
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Passing in number 0 as a child would result in nothing being rendered. See test:
https://github.com/dburles/vhtml/blob/88278a1fb47f93edb40e974ab4eaf6923169f4a4/test/vhtml.js#L169-L178