Posts by Luan Luiz • 33 points

• 2

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  Q: How to create an object array with React useState

  I’m trying to do the following procedure at React Native, with the Expo: I have some data stored in Asyncstorage of the device. The code below returns me the following result: CODE…

  javascript array react-native

  asked 3 years, 11 months ago Luan Luiz 33

• 0

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  2

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  A: Return default value if no record

  If you refer to the column, try to do so: COALESCE( NULLIF(seuCampo,'') , '0' ) NULLIF compares whether the field passed in the first parameter is equal to empty, and for that it puts 0 in place of…

  postgresql

  answered 6 years, 3 months ago Luan Luiz 33