how to do a “flat push” in javascript?

Question

I want to push all individual elements of a source array onto a target array,

target.push(source);

puts just source\'s reference on the tar

Answer 1

You could use the concat method:

var num1 = [1, 2, 3];  
var num2 = [4, 5, 6];  
var num3 = [7, 8, 9];  

// creates array [1, 2, 3, 4, 5, 6, 7, 8, 9]; num1, num2, num3 are unchanged  
var nums = num1.concat(num2, num3);