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What will be the output of the following JavaScript code?


var string1=[1,2,3];  


var string2=[4,5,6,7,8,9,10];  

var result=string1.concat(string2);  



a) 1, 2, 3

b) Error

c) It will concatenate both the stings and print as 1, 2, 3, 4, 5, 6, 7, 8, 9 ,10

d) It will print nothing

1 Answer

0 votes

Answer: C

Reason: In JavaScript, the "concat()" is a predefined method which is used to join the values of two arrays. Both the arrays can contain string or the integers.


var val1=[1,2,3];  
var val2=["G,O"];  
var result=val1.concat(val2);  it will join values of both the array and store in the "result" variable

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