PreferConstOverLet [rule] v0.1.0

Declare every binding with const by default. Reach for let only when the binding is genuinely reassigned. A const binding signals to the reader that the slot will not change — that signal is a load-bearing part of readability.

Checks

• Every variable that is not reassigned in its scope is declared with const.
• let appears only on bindings that have at least one assignment after the declaration.
• Loop counters and accumulators that genuinely change use let; everything else is const.
• ESLint prefer-const is on as error and no-const-assign is on as error.

Label

Use const for all references; only fall back to let when reassignment is required

PreferConstOverLet [rule] v0.1.0

Declare every binding with const by default. Reach for let only when the binding is genuinely reassigned. A const binding signals to the reader that the slot will not change — that signal is a load-bearing part of readability.

Checks

• Every variable that is not reassigned in its scope is declared with const.
• let appears only on bindings that have at least one assignment after the declaration.
• Loop counters and accumulators that genuinely change use let; everything else is const.
• ESLint prefer-const is on as error and no-const-assign is on as error.

Label

Use const for all references; only fall back to let when reassignment is required

Label

Use const for all references; only fall back to let when reassignment is required