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The length of the array wil be -1 the order of the array. Array order 0-5, array lenght 6. So Math.random()*colors.length+1 will drop some undefined positions.
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The length of the array wil be -1 the order of the array. Array order 0-5, array lenght 6. So Math.random()*colors.length+1 will drop some undefined positions.