array helper function

equal.ts

function equal<Type, Key extends keyof Type>(propertyName: Key, value: Type[Key]) {
    return (item: Type) => item[propertyName] === value;
  }
  
  const arr = [
    { id: 1, name: "juho" },
    { id: 2, name: "kim" },
    { id: 3, name: "holy" },
    { id: 4, name: "jesus" },
    { id: 5, name: "fire" },
    { id: 6, name: "water" },
  ];
  
  const f1 = arr.find(equal("id", 1));
  console.log(f1);
  const f2 = arr.find(equal("name", 'fire'));
  console.log(f2);