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leafney / leafney.github.io

blog IT范儿 https://www.itfanr.cc/
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Dart中判断字符串是否为空 | IT范儿 #207

Open leafney opened 2 years ago

leafney commented 2 years ago

https://www.itfanr.cc/2021/05/11/whether-string-is-null-or-empty-in-dart/

flutter: NoSuchMethodError: The getter 'isEmpty' was called on null