0 votes

I define a constant and a variable. I assign the constant to the variable and manipulate the variable but I don't know why the constant also changes.

Code:
const DEF = [[0,2],
[1,1],
[2,2],
[3,3]]
var deflist
deflist[0][1] *= 1.5

Then the output shows that DEF[0][1] also changes to 3.
It is weird that a constant is not constant even I have done nothing on it.
Does anyone know what happens?

asked Jun 21 in Engine by edwood (12 points)

1 Answer

0 votes

You need to duplicate with deep=true:

var deflist = DEF.duplicate(true)
deflist[0][2] *= 1.5

Click here to run the code above.

Seems like const doesn't keep arrays from being changed.

answered Jun 22 by Dlean Jeans (3,505 points)

Oh, I see. Let me try. Thx XD

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