undo an migration in sequelize code example

Example 1: undo specific migration sequelize

db:migrate:undo --name 20180704124934-create-branch.js

Example 2: sequelize migration limit

queryInterface.createTable(
    'Posts',
    {
        title: {
            type: Sequelize.DataTypes.STRING(100),
            allowNull: false
        }
    }
);