Property '...' is declared but never used

Question

I have many unused params for my functions and constructors, usualy, an underscore does the trick

1) but here I still get the error message

I tried this (or adding an underscore)

/* tslint:disable-next-line:no-unused-variable */
constructor(private el: ElementRef) {  }

with no luck

2) how do we deal with parameters that are only used in the templates, such errors will be triggered ?

I have to console.log to faint using a variable

thanks

nobody ? come on, I even have to console.log(password) on my login forms to get rid of this issue...this really renders angular anti-secure — ninja, Aug 02 '17 at 06:41
You don't have to `console.log()` to fake use a variable, just do something like `() => this.el;`. — Simon Hänisch, Aug 24 '17 at 22:40

score 3 · Answer 1 · answered Dec 07 '17 at 13:07

3

Just set your variable as public

constructor(public el: ElementRef) {  }

answered Dec 07 '17 at 13:07

score 1 · Answer 2 · answered Apr 14 '20 at 12:58

There are could be two reason for this tslint error(Property '…' is declared but never used )

Either variable is getting used in HTML in that case to fixed it use public

constructor(public el: ElementRef) { }
If variable is getting used only in constructor, hence without this keyword to fix this use just remove public/private

constructor(el: ElementRef) { }

When we inject this way we will not be able to use it in class other than constructor.

score 0 · Answer 3 · answered Aug 12 '17 at 11:25

0

Set this in your tslist.json

"noUnusedLocals": false,
"noUnusedParameters": false

answered Aug 12 '17 at 11:25

saiy2k

3 Answers3