Array : Javascript: how is 'new Array(4)' different from Array.apply(null, {length: 4})?

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Array : Javascript: how is 'new Array(4)' different from Array.apply(null, {length: 4})?
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Array : Javascript: how is 'new Array(4)' different from Array.apply(null, {length: 4})?
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Javascript: Array.apply(null, 4})? different {length: Array(4)' : from is Array 'new how



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