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rarous/defaults.jsx

Last active October 5, 2015 14:16
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Raw
defaults.jsx
const projects = company.get('projects', List());
return (
<PaperCard heading='Our Projects'>
<PaperCardContent>
{projects.map((p, i) =>
<Project key={`proj${i}`} project={p} />
)}
</PaperCardContent>
</PaperCard>
);
Raw
null_checking.jsx
const projects = company.get('projects');
return (
<PaperCard heading='Our Projects'>
<PaperCardContent>
{projects && projects.map((p, i) =>
<Project key={`proj${i}`} project={p} />
)}
</PaperCardContent>
</PaperCard>
);
Raw
safe_updates_of_cursors.js
company.update('projects', List(), ps => ps.push(proj));
@steida
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steida commented Oct 5, 2015

Ten index v key je pěkně brittle. Reactu to zavře hubu, ale pokud seřadíš výsledky, nestane se nic v okamžiku, když p bude už existující.

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