Nonconforming Typescript argument specification

Question

Nonconforming Typescript argument specification

I've been struggling to pass this TypeScript array to a function. Despite trying multiple parameter types in an attempt to get it to compile, none of them have worked so far. Here is the array in question:

var driverTally = [
                    { driver: 'driver1', numEscorts: 0},
                    { driver: 'driver2', numEscorts: 0},
                    { driver: 'driver3', numEscorts: 0} 
                ];

doStuff(driverTally : Array<[string,number]>){ ... }

The compiler error I keep encountering says: "Argument of type '{ driver: string; numEscorts: number; }[]' is not assignable to parameter of type '[string, number][]'.

typescript

Answer 1

Answer №1

If you're unsure about the type, feel free to use any.

doStuff(driverTally : any){ ... }

Alternatively, you can create a Class with the specified type:

export class Driver {
   public string driver;
   public int numEscorts;
}

Then declare your array as follows:

driverstally : Driver[] = [
                    { driver: 'driver1', numEscorts: 0},
                    { driver: 'driver2', numEscorts: 0},
                    { driver: 'driver3', numEscorts: 0} 
                ];

Finally, pass it like this:

doStuff(driverTally :Driver[] ){ ... }

Answer 2

If you're unsure about the type, feel free to use any.

doStuff(driverTally : any){ ... }

Alternatively, you can create a Class with the specified type:

export class Driver {
   public string driver;
   public int numEscorts;
}

Then declare your array as follows:

driverstally : Driver[] = [
                    { driver: 'driver1', numEscorts: 0},
                    { driver: 'driver2', numEscorts: 0},
                    { driver: 'driver3', numEscorts: 0} 
                ];

Finally, pass it like this:

doStuff(driverTally :Driver[] ){ ... }

Answer 3

Answer №2

My suggestion is to define an interface for the driver:

interface IDriver {
    drive: string;
    numEscorts: number;
}

Next, create an array with initial values:

public drivers: IDriver[] = [];

Then, you can pass this array as a parameter in a function:

doStuff(driverTally: IDriver[] ){ ... }

Answer 4

My suggestion is to define an interface for the driver:

interface IDriver {
    drive: string;
    numEscorts: number;
}

Next, create an array with initial values:

public drivers: IDriver[] = [];

Then, you can pass this array as a parameter in a function:

doStuff(driverTally: IDriver[] ){ ... }

Nonconforming Typescript argument specification

Answer №1

Answer №2

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