Posts by Ed Girão • 94 points

• 0

  votes

  1

  answer

  78

  views

  A: Make a global useState variable in React

  Hello, if you are not going to use Context or Redux I recommend that you change the backgroundColor directly on the sheet where the state is, for example: import { View , TouchableOpacity ,Text ,…

  javascript react react-native front-end

  answered 3 years, 4 months ago Ed Girão 94

• 0

  votes

  1

  answer

  32

  views

  A: Return a list of values present in select

  One way to solve your problem would be to create a global array that would record all the numbers that have already been entered in select and then just need to check whether the number is already…

  javascript html

  answered 4 years, 2 months ago Ed Girão 94

• 4

  votes

  2

  answers

  2161

  views

  Q: How to delete a foreign key from Mysql

  I’m having the same problem in every database. I have a database created with the following lines create database nova; create table estado( id int primary key auto_increment, nome varchar(20) );…

  mysql

  asked 6 years, 5 months ago Ed Girão 94

• 3

  votes

  3

  answers

  1433

  views

  A: How to create list in Haskell

  You just need to define that the lista you’ll get a list of some guy. Example: lista:: [a]->[a] lista a=a

  array haskell

  answered 6 years, 6 months ago Ed Girão 94