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Observer pattern in JavaScript by Lydia Hallie ✨ From her "Tour of JavaScript & React Patterns" course:

Master.dev (Formerly Frontend Masters)

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73,987 次观看 • 3 年前 •via X (Twitter)

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The observer pattern is used to enable a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

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@lydiahallie @TranslateMom English

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