What will be the value of Variable 'output' ? var str = "Str"; var num = 10; var output = str + num;

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Question:What will be the value of Variable 'output' ? var str = "Str"; var num = 10; var output = str + num;

1.Nothing will be printed

2.Str10

3.Null

4.NaN

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  1. What will be the value of Variable 'output' ? var str = "Str"; var num = 10; var output = str + num;
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