Question

How to concatenate multiple arrays in JavaScript

Answer 1

var array1 = ["a", "b"],
    array2 = ["c", "d"],
    array3 = ["e", "f"],
    array4 = ["g", "h"];
    array5 = ["i", "j"];

var arr = array1.concat(array2, array3, array4, array5);

document.write(arr);

/*
run:
  
a,b,c,d,e,f,g,h,i,j
  
*/

 

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