Consider the following code snippet :
 if (!a[i]) continue;

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Consider the following code snippet :

 if (!a[i]) continue;

What is the observation made ?



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2) Consider the following code snippet :

var a = [1,2,3,4,5];
a.slice(0,3);

What is the possible output for the above code snippet ?

3) Consider the following code snippet :

  var a = [];
a.unshift(1);
a.unshift(22);
a.shift();
a.unshift(3,[4,5]);
a.shift();
a.shift();
a.shift();

The final output for the shift() is

4) What will happen if reverse() and join() methods are used simultaneously ?

5) The method or operator used to identify the array is

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