# UNSAFE_STRING_TIMER: Timer given a string

> Timer given a string

| Severity | Fault                         | Stage        |
| -------- | ----------------------------- | ------------ |
| error    | customer (the source package) | build output |

## What it means

The component passes a string to setTimeout or setInterval, which the browser compiles as code like eval, or calls a timer through an alias or as a value, where the build cannot see its first argument (rule string-timer).

## How to fix

Pass a function and call the timer by its name: setTimeout(() => show(), 1000).