Functionutilsv0.6.1prettyDifferenceCalculates the difference between two numbers and formats it as a string with a '+' prefix for positive differences. prettyDifference( numBefore: number, numAfter: number ): stringprettyDifference( numBefore: number, numAfter: number ): stringExamplesCopy// Returns "+5" prettyDifference(10, 15);// Returns "+5" prettyDifference(10, 15);Copy// Returns "-3" prettyDifference(10, 7);// Returns "-3" prettyDifference(10, 7);ParamsnumBeforenumBefore: numbernumBefore: numberThe initial number value numAfternumAfter: numbernumAfter: numberThe final number value