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Javascript Recursion

00:46
Recursion is when a function calls itself. This is often useful in mathematics,
such as fi nding the nth number in the Fibonacci series (1, 2, 3, 5,
8, 13, 21…).
function fi bonacci(n) {
if ( n < 2 ) {
return 1;
} else {
return fi bonacci(n-2) + fi bonacci(n-1);
}
}
fi bonacci(5);
8
fi bonacci(10);
89
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