15 lines
404 B
JavaScript
15 lines
404 B
JavaScript
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first = function(array, n) {
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if (array == null)
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return void 0;
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if (n == null)
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return array[0];
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if (n < 0)
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return [];
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return array.slice(0, n);
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};
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console.log(first([7, 9, 0, -2]));
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console.log(first([],3));
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console.log(first([7, 9, 0, -2],3));
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console.log(first([7, 9, 0, -2],6));
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console.log(first([7, 9, 0, -2],-3));
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