How can i call function with default and optional parameter in typescript

Question

My function

   inputMinMaxValidation(name: string, max: any = 100, i?: number): void {
          ...........
          ...........
          ...........
    }

In this function I've to call last optional parameter (i). My call inputMinMaxValidation('Hello', 100 , 1) . But I don't want reassign my default value.

I tried

inputMinMaxValidation('Hello', false , 1)

inputMinMaxValidation('Hello', null , 1)

But It doesn't work.

IftekharDani · Accepted Answer · 2018-01-01 07:26:28Z

1

Please refer documentation, use undefined:

As given example :

function buildName(firstName: string, lastName = "Smith") {
return firstName + " " + lastName;

}

let result2 = buildName("Bob", undefined);

answered Jan 1, 2018 at 7:26

IftekharDani

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1 Comment

Imran Over a year ago

Sure But I want to wait a little more.

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