How is it that I can assign a string value to my declared number object parameter in Typescript?

In my code, I have defined an interface called DateArray:

export interface DateArray {
    year    : number;
}

Within my component, I am declaring a new variable named dateArray like this:

private dateArray: DateArray = {
    year: null
};

Then, I am assigning a value to dateArray.year in the following manner:

this.dateArray.year = this.megaData[0][3];

What puzzles me is that regardless of whether the value of this.megaData[0][3] is a string, number, or array, it gets assigned to this.dateArray.year without any issues.

When I try to assign a string to dateArray.year directly like so:

 this.dateArray.year = "A"

I encounter an error stating "can't assign string to number". However, if the value of this.megaData[0][3] happens to be "A", then strangely no error occurs. And when I print out the result of:

        this.dateArray.year = this.megaData[0][3];
        console.log("this.dateArray.year);

The output is simply A.

At the moment, this.megaData is only defined as <any>. Could this possibly be causing the issue?

Answer №1

this.gigaData is currently set as <any>, could this be causing the issue?

This is accurate because using any means it allows for a number, including within or as part of the defined type of property age, preventing any type mismatch errors during assignment.

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