Typescript required param if other param = true

I have a typescript function with some params like that

myFunction(allData: Array<any>, selectedItems: Array<any>, onlyValues: boolean = false, values: Array<any>) {
    console.log(allData);
    console.log(selectedData);
    console.log(onlyValues);
    console.log(values);
}

If onlyValues is set to true, I want values to be required, else, I don’t need values

How to do this please

>Solution :

You could try with a guarded type:

type Values = {onlyValues: true, values: Array<any>} | {onlyValues: false}

Then you would pass (allData: Array<any>, selectedItems: Array<any>, v: Values) to the function.

You can try this TS Playground.