nullIfEqual method

String? nullIfEqual(
  1. String? comparisonString
)

Return null if this equals comparisonString. Otherwise return this.

Example

String t = 'OK'.nullIf("OK"); // returns null;
String f = 'NO'.nullIf("YES"); // returns "NO";

Implementation

String? nullIfEqual(String? comparisonString) => nullIf((s) => s == comparisonString);