How to Add, Delete new Columns in Sequelize CLI

Question

I\'ve just started using Sequelize and Sequelize CLI

Since it\'s a development time, there are a frequent addition and deletion of columns. What the best the method

Answer 1

If you are working in vscode, you can add type definition in the migration file. which helps to identify all the methods QueryInterface and sequelize provide.

 module.exports = {
/**
   * @typedef {import('sequelize').Sequelize} Sequelize
   * @typedef {import('sequelize').QueryInterface} QueryInterface
   */

  /**
   * @param {QueryInterface} queryInterface
   * @param {Sequelize} Sequelize
   * @returns
   */
  up: function(queryInterface, Sequelize) {
    // logic for transforming into the new state
    return queryInterface.addColumn(
      'Todo',
      'completed',
     Sequelize.BOOLEAN
    );

  },

  down: function(queryInterface, Sequelize) {
    // logic for reverting the changes
    return queryInterface.removeColumn(
      'Todo',
      'completed'
    );
  }
}

Which will provide intellisense like below