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Can a variable be equal to another variable?
The really short answer to both your questions is that when you make one variable equal to another, a COPY of what’s in the first variable is made and stored in the second variable – there is no linkage between the two variables.
How do you make a variable equal another variable in Python?
The second method of creating references in Python is by assigning a variable to another variable: var1 = var2 , where both var1 and var2 are two distinct variables. For example, let the variable var2 contain the value 2 .
How do we assign an existing variable to a new variable in JavaScript?
In JavaScript, we can simply reassign the new value to the variable. When we change the value of a variable, we do not use var again. We simply use the = to give the variable a new value.
Is python case sensitive when dealing with variables naming?
Python is a case-sensitive language. This means, Variable and variable are not the same. Always give the identifiers a name that makes sense.
How to set a variable equal to another variable?
Let’s say we create an object, a and set b = a. I understand that if we change one of a ‘s properties b will also be changed because when we set b = a we don’t clone a ‘s data, but rather create a reference to a ‘s data. For example if we set a.fname = “Sarah”, the new value of b.fname will be “Sarah”.
What happens when two variables refer to the same object?
However, if two variables refer to the same object (i.e. their type is a class, and their values are equal references), then any changes to that object will be visible via either variable. It sounds like this is what you want to achieve.
What happens when you assign a variable to another variable?
By the time you assign a different reference (and thus object) to a variable, the Garbage Collector will immediately reclaim the space allocated to the previous object, assuming that it is not being referenced by any other variable in the source code: When you store spam = 42 , it creates an object in the memory.
What happens when you change a variable in JavaScript?
I understand that if we change one of a ‘s properties b will also be changed because when we set b = a we don’t clone a ‘s data, but rather create a reference to a ‘s data. For example if we set a.fname = “Sarah”, the new value of b.fname will be “Sarah”. If we try to “clear” a though by setting a = {}, object b will remain unchanged.