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fix: update article.md #1210

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Jun 30, 2024
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fix: update article.md #1210

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2 changes: 1 addition & 1 deletion 1-js/02-first-steps/12-nullish-coalescing-operator/article.md
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Expand Up @@ -106,7 +106,7 @@ alert(height ?? 100); // 0

## 优先级

`??` 运算符的优先级与 `||` 相同，它们的优先级都为 `4`，详见：[MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence#Table)。
`??` 运算符的优先级与 `||` 相同，它们的优先级都为 `3`，详见：[MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence#Table)。

这意味着，就像 `||` 一样，空值合并运算符在 `=` 和 `?` 运算前计算，但在大多数其他运算（例如 `+` 和 `*`）之后计算。

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