Linter · Rules

unicorn/no-length-as-slice-end

Disallow passing .length as the end argument of .slice()

Without a second argument, .slice() already goes to the end of the array or string. Passing the length of the same value adds nothing.

--fix removes the second argument.

Configure

Off by default. To turn it on:

bunfig.toml

[lint.rules]
"unicorn/no-length-as-slice-end" = "error" # or "warn"

Reported:

const rest = items.slice(1, items.length);

Not reported:

const rest = items.slice(1);
const sameSizeAsOther = items.slice(1, other.length);
const allButLast = items.slice(0, items.length - 1);