This is probably a very basic question - see a simple code:
var ar1=[];
var ar2=[];
ar1[0] = 'Constant';
ar1[1] = data.attr.const;
ar2.push(ar1); //OK, ar2 contains one array of two correct elements
ar1[0] = 'R-squared';
ar1[1] = data.attr.rsq;
ar2.push(ar1); // Not OK - ar2 contains 2 identical arrays
ar1[0] = 'R-sq. adjusted';
ar1[1] = data.attr.rsqadj;
ar2.push(ar1); // Not OK - ar2 contains 3 identical arrays
The problem is that every time when it executes ar2.push(ar1) , it overwrites all elements of ar2. After this code is executed, I get an obect with containing 3 identical arrays. How can I fix it?
Thanks
Objects in JS are always references (unlike strings or numbers). Whenever you push
you're referring to the same object that is already inside the array, you need to clone:
ar2.push(ar1.slice(0)); // clone ar1
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