Unverified50% confidenceFactExact time
The :has() pseudo-class lets developers select a parent element based on the state of its child elements, which previously required scripts to achieve.
1
Sources
50%
Confidence
Long-term
Relevance
10/21/2026
First Seen
Sources
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Related Claims
UnverifiedThe core mechanism of gradual typing is the "type boundary": developers can annotate types in key modules and obtain compile-time checking while retaining dynamic behavior in unannotated regions; the type checker interacts with dynamic code through top types such as `any` or `unknown`.68% similarUnverifiedThe :has() selector is known as CSS's 'parent selector,' allowing a parent element to be selected based on the state of its child elements.65% similarUnverifiedWhen defining an instance for Functor, the compiler checks whether the Kind of the target type is * -> *; if a type whose Kind is * (such as Int) is passed in, the compiler reports an error.63% similarUnverifiedGo编译器在处理泛型类型时使用占位符（Placeholder）机制，在类型尚未完全构建时先插入引用标记，待构建完成后再回填62% similarUnverifiedGradual typing brings problems such as type holes (e.g., `any` escaping) and incomplete checking, which need to be constrained through engineering conventions.60% similar
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