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Variables with const and let
Variables give meaningful names to the information a program needs. Use const when the binding should stay fixed and let when it must be assigned a new value.
const playerName = "Mira";
let score = 10;
score = score + 5;
console.log(`${playerName}: ${score}`); // Mira: 15Declare values, update counters, copy values, and choose names that reveal what the code is doing. A useful default is to start with const and reach for let only when reassignment is part of the idea.