Extra semicolons (;) are usually introduced by mistake, for example because:
- It was meant to be replaced by an actual statement, but this was forgotten.
- There was a typo which lead the semicolon to be doubled, i.e.
;;.
- There was a misunderstanding about where semicolons are required or useful.
Noncompliant Code Example
var x = 1;; // Noncompliant
function foo() {
}; // Noncompliant
Compliant Solution
var x = 1;
function foo() {
}
See
- CERT, MSC12-C. - Detect and remove code that has no effect or is never executed
- CERT, MSC51-J. - Do not place a semicolon immediately following an if, for, or while
condition
- CERT, EXP15-C. - Do not place a semicolon on the same line as an if, for, or while
statement