no-template-curly-in-string

${name} is only replaced inside backticks. In "Hello, ${name}" it stays as it is, and the user sees the text ${name}. This happens when you type the wrong quotes, or add a placeholder to a string that was fine with quotes before.

Configure#

Off by default. To turn it on:

[lint.rules]
"no-template-curly-in-string" = "error" # or "warn"

Examples#

const greeting = "Hello, ${user.name}!";

const greeting = `Hello, ${user.name}!`;
const price = "$5";

When not to use it#

Some strings are meant for another tool that uses the same syntax, such as a shell command with "${HOME}/bin". If you have many of them, turn the rule off for those files.