What is this syntax in the tutorial? #1673
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In this tutorial: https://remix.run/docs/en/v1/tutorials/blog function isValidPostAttributes(
attributes: any
): attributes is PostMarkdownAttributes {
return attributes?.title;
}What is the |
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Answered by
AlexandrLi
Jan 27, 2022
Replies: 1 comment 1 reply
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This is a user-defined type guard. You can read more about it in docs https://www.typescriptlang.org/docs/handbook/2/narrowing.html#using-type-predicates |
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1 reply
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Thank you. |
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Answer selected by
fnick851
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This is a user-defined type guard. You can read more about it in docs https://www.typescriptlang.org/docs/handbook/2/narrowing.html#using-type-predicates