Comma Operator Unfolding

Description

The comma operator evaluates their operands (expressions), from left to right, and returns the value of the last expression. It is commonly used when we want to include multiple expressions in a single expression.

Comma Operator Unfolding transforms each operand of a comma operator to an individual expression resulting in multiple contiguous expressions keeping the same execution order as the original form.

Code Annotation Example

// @jscrambler enable commaOperatorUnfolding

Example

Consider the following comma operator example:

(foo = 1, bar = 2, baz = 3);

After transformation the result will look like this:

foo = 1;
bar = 2;
baz = 3;

Browser Compatibility

Browser	Compatible Versions	Tested Versions	Notes
Chrome	80+	80+
Firefox	90+	90+
Internet Explorer	8+	8+
Microsoft Edge	116+	116+
Safari	13.1+	13.1+

API Parameters

Example:

{
  "keys": {
    "accessKey": "XXXXXX",
    "secretKey": "YYYYYY"
  },
  "applicationId": "ZZZZZZ",
  "params": [
    {
      "name": "commaOperatorUnfolding"
    }
  ]
}