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maxsimych/condition&&expression

Last active July 28, 2019 18:54
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condition&&expression construction JS
Raw
condition&&expression
true && expression always evaluates to expression, and false && expression always evaluates to false.
(Therefore, if the condition is true, the element right after && will appear in the output. If it is false, React will ignore and skip it)
JSX example:
<div>
<h1>Hello!</h1>
{unreadMessages.length > 0 &&
<h2>
You have {unreadMessages.length} unread messages.
</h2>
}
</div>
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