call one function from another function with parameter in angular 8

Question

app.component.ts

viewDelete() {
 console.log('s')
 this.isDelete = !this.isDelete
 console.log(this.isDelete);
 this.viewData(id) ==>> I am getting error here id is not defined 
}

viewData(id) {
 console.log('comes')
 this.departmentService.getDepartmentById(id).subscribe(
  res => this.departmentDetail = res,
  error => this.error = error
 )
}

I want to call viewData() function from viewDelete() function. It is getting call correctly but argument id in viewData(id) giving error, id is not defined

the error is right, because where you have defined id first of all. Since it's not inside the function so let's assume you have defined at class level, so its very basic question, how to access a class-level variable. — Anshita Singh
– Anshita Singh, Commented May 13, 2020 at 19:23

Cagri Tacyildiz · Accepted Answer · 2020-05-13 18:13:40Z

1

You don't have any id parameter inside function. If it is general parameter write this

viewDelete() {
 console.log('s')
 this.isDelete = !this.isDelete
 console.log(this.isDelete);
 this.viewData(this.id);
}

if not and removing one of list element take id from html as parameter

viewDelete(id) {
 console.log('s')
 this.isDelete = !this.isDelete
 console.log(this.isDelete);
 this.viewData(id);
}

edited May 13, 2020 at 18:13

answered May 13, 2020 at 18:08

Cagri Tacyildiz

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7 Comments

Aluan Haddad Over a year ago

This is highly dubious. What if it's a list component and there are multiple Id's? Also this is not for parameters it's for properties

Cagri Tacyildiz Over a year ago

Thats why I wrote second example if list it will send as parameter from html

Aluan Haddad Over a year ago

Fair enough, but when you say "If it is general parameter write this" it doesn't make any sense

Cagri Tacyildiz Over a year ago

I don't know content of code . I don't know what id is. It may be general id and asking first user if delete or not so attending id to general parameter. If user say yes ,maybe delete it. That's whay i wrote two examples

Cagri Tacyildiz Over a year ago

So you need to send id from html to first function. If there is no id in function how can you send it to second function

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