p8nda
p8nda BETA
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闭包

閉包
bìbāo
noun

Meanings

  1. 1 closure (mathematics) - the smallest closed set containing a given set
  2. 2 closure (computer science) - a function bundled together with references to its surrounding state

Examples

HSK 7-9
在拓扑学中，集合的闭包包含其所有极限点。
Zài tuòpūxué zhōng, jíhé de bìbāo bāohán qí suǒyǒu jíxiàndiǎn.
In topology, the closure of a set contains all its limit points.
HSK 7-9
JavaScript 的闭包让函数能记住外部变量。
JavaScript De bìbāo ràng hánshù néng jìzhù wàibù biànliàng.
JavaScript closures allow a function to remember outer variables.

Tips

usage
Two technical fields, same Chinese term. In math (topology, algebra) 闭包 is the closure operation - the smallest closed set containing your set. In programming, it's a function plus the lexical environment it captured. Context disambiguates instantly; outside math/CS the word is rare.

Stroke Order

闭 bì
包 bāo