Why does changing an Array in JavaScript affect copies of the array?

Question

I\'ve written the following JavaScript:

var myArray = [\'a\', \'b\', \'c\'];
var copyOfMyArray = myArray;
copyOfMyArray.splice(0, 1);
alert(myArray); // aler         


        

Answer 1

In JS, operator "=" copy the pointer to the memory area of the array. If you want to copy an array into another you have to use the Clone function.

For integers is different because they are a primitive type.

S.