JavaScript in 30 words
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JavaScript call() Explained Simply

With call you can write a method once, and then inherit it in another object, without having to rewrite the method for the new object.

function introduce(greeting, punctuation) {
  return `${greeting}, ${this.name}${punctuation}`;
}
const user = { name: "Sam" };
console.log(introduce.call(user, "Hello", "!"));

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