JavaScript variable copy

varCopy.js

// color1의 값을 color2에 저장한다.
var color1 ="red";
var color2 = color1;

console.log(color1); // "red"
console.log(color2); // "red"

color1 = "blue"

console.log(color1); // "blue"
console.log(color2); // "red"