NestJS Sequelize - fields, which can be null are not recognized as possible null in rest of code

Question

I am starting to work with NestJS and PostgreSQL databases. I created a model called User. In this model is a column named verifiedAt. It looks like:

@Column({
    type: DataType.DATE,
    allowNull: true,
})
verifiedAt: Date | null;

A value of the column can be null. But when I reference this property from another place in my code, the IDE doesn't recognize that it may be null. Shows only the Date type.

Why it is like this? What should I change to fix this?

Answer 1

I found a resolution. In tsconfig.json the strictNullChecks flag must be set to true.