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org.sonar.l10n.javascript.rules.javascript.UnreachableCode.html Maven / Gradle / Ivy

Jump statements (return, break and continue) and throw expressions move control flow out of the current code block. Typically, any statements in a block that come after a jump or throw are simply wasted keystrokes lying in wait to confuse the unwary. 
Noncompliant Code Example

fun(a) {
  var i = 10;
  return i + a;       // Noncompliant 
  i++;             // this is never executed
}

Compliant Solution

int fun(int a) {
  int i = 10;
  return i + a;
}

See


 MISRA C++:2008, 0-1-9 - There shall be no dead code
 MISRA C:2012, 2.2 - There shall be no dead code
 MITRE, CWE-561 - Dead Code
 CERT, MSC12-C - Detect and remove code that has no effect or is never executed
 CERT, MSC12-CPP - Detect and remove code that has no effect