🚧 施工中
JS ⟩ value ⟩ primitive ⟩ wrapper
undefinedarrow-up-right/null has no wrapper, can't call methods, no properties.
primitive wrapper objectarrow-up-right
Object.assign()arrow-up-right
mixin: in Object.assign()arrow-up-right, primitive (both target and sources) will be wrapped to objects.
Last updated 3 years ago