Magic number detected in string

[messerbill]

I want to report a bug.

The bug is about "magic numbers" inside of strings written in backticks ( `)

SonarTS version: 1.8

Node.js version: 10.11.0

TypeScript version: 3.1.6

Reproducer

public static formatDate(dateString: string): string {
        let partials = dateString.split(".")
        partials = partials.map((item: string) => {
            return item.length < Constants.DATE_DIGITS ? `0${item}` : item // this 0 is detected as a magic number, but on the one side it is a 0 which should be allowed anyway and on the other side this is a string which should never be a magic "number"...
        })
        return `${partials[Constants.DATE_DAY]}.${partials[Constants.DATE_MONTH]}.${partials[Constants.DATE_YEAR]}`
    }

Expected behavior

Strings should not be checked for containing "magic numbers"

[vilchik-elena]

I can't reproduce with your code snippet. Are you sure this issue is coming from SonarTS analyzer? If that's the case then small project reproducing your problem will help.
Also you could add issue screenshot.