Advertisements I have an instance sampleInstance of an unknown class and I need to create a second instance of the same class. Here’s what I am doing right now: I look up the class name with sampleInstance.constructor.name. Next, I use eval(`new ${sampleInstance.constructor.name}()`) to create a new instance of the same class. The code below works… Read More Creating new instance of the same class as an existing instance, without using eval()

Advertisements I have a piece of code that calculates the sum of a number of variables. For example, with 3 variables (A = 1, B = 2, C = 3) it outputs the sum X = 6. The way the code is implemented this is set up as a list with two strings: Y =… Read More How can I use the python compile function on an empty string?

Advertisements Rubocop dislikes the following; it issues Pass a binding, __FILE__ and __LINE__ to eval.: sort_lambda = eval "->(a) { a.date }" Yes, I know that eval is a security problem. The issue of security is out of scope for this question. The Ruby documentation on binding says: Objects of class Binding encapsulate the execution… Read More How to Make Or Reference a Null Ruby Binding For Eval