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最后更新时间 (UTC):2023-12-02。
[null,null,["最后更新时间 (UTC):2023-12-02。"],[[["The Blockly Extensions namespace provides functions for registering, applying, and managing extensions that add functionality to blocks."],["Extensions can define dynamic behaviors like onchange handlers, mutators, and tooltips, enhancing block interactions."],["They are applied to blocks using `Block.applyExtension()` or the JSON \"extensions\" array attribute during block creation."],["Several helper functions are available for building tooltips and registering different types of extensions, including mixins and mutators."],["The namespace also includes functions for checking registration status and unregistering extensions."]]],[]]