JavaScript in 30 words
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JavaScript Value vs Reference Explained Simply

Pass by value means the actual value is passed on. Pass by reference means a number (where the value is stored in memory) is passed on.

function update(points, profile) {
  points = 99;
  profile.name = "Mira";
  profile = { name: "Someone else" };
}
const points = 10;
const profile = { name: "Sam" };
update(points, profile);
console.log(points);
console.log(profile.name);

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