PhpStorm 2021.1 Help

Code Inspection: Comma expression

Reports comma expressions. Comma expressions are often a sign of overly clever code, and may lead to subtle bugs. Comma expressions in the initializer or update section of a for loop are ignored by this inspection.

In the following example, a potentially confusing one-line comma expression is rewritten using three separate statements:

return a++, b = myObject.someValue;
a++; b = myObject.someValue; return b;

See Comma operator (MDN) for details.

Suppress an inspection in the editor

  1. Position the caret at the highlighted line and press Alt+Enter or click the Intention action icon.

  2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.

Last modified: 08 March 2021