using Jint;

​

Engine engine = new();

engine.Execute("[][\"filter\"][\"constructor\"]( ([][\"flat\"]+\"\")[3]+(true+[][\"flat\"])[10]+(undefined+\"\")[1]+(false+\"\")[3]+(true+[][\"flat\"])[10]+(false+\"\")[2]+(true+\"\")[3]+(+(+!+[]+[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+[!+[]+!+[]]+[+[]])+[])[+!+[]]+(false+\"\")[2]+(true+[][\"flat\"])[10]+(false+[0]+String)[20]+([][\"flat\"]+\"\")[13]+(\"\")[\"fontcolor\"]()[12]+(NaN+[][\"entries\"]())[11]+(\"\")[\"fontcolor\"]()[12]+([0]+false+[][\"flat\"])[20] )()");