Convert String to Variable Name or Variable Type

Convert string to variable name or variable type

No, this is not possible. This sort of functionality is common in scripting languages like Ruby and Python, but C++ works very differently from those. In C++ we try to do as much of the program's work as we can at compile time. Sometimes we can do things at runtime, and even then good C++ programmers will find a way to do the work as early as compile time.

If you know you're going to create a variable then create it right away:

int count;

What you might not know ahead of time is the variable's value, so you can defer that for runtime:

std::cin >> count;

If you know you're going to need a collection of variables but not precisely how many of them then create a map or a vector:

std::vector<int> counts;

Remember that the name of a variable is nothing but a name — a way for you to refer to the variable later. In C++ it is not possible nor useful to postpone assigning the name of the variable at runtime. All that would do is make your code more complicated and your program slower.

C - Convert string to variable name

This is simply not possible in C.

Check out this question for more details.
How to return a variable name and assign the value of the variable returned in c

To quote Wichert, 'I suggest that you reconsider the problem you are trying to solve and check if there might not be a better method to approach it. Perhaps using an array, map or hash table might be an alternative approach that works for you.'

Convert a String to a Variable name in Python

I just cobbled a quick example to do what you want to do, I do not recommend that you do this, but I will assume that you have a good reason to and will therefore help.

vars = ["a", "b", "c"]
for i in range(len(vars)):
   globals()[vars[i]] = (i+1)*10

print(a) # 10
print(b) # 20
print(c) # 30

This example may be a little complicated but it does exactly what you asked for in your question, long story short you can use the globals() function to turn a string into a variable. Link for more info here: https://www.pythonpool.com/python-string-to-variable-name/

Convert string to variable name in JavaScript

If it's a global variable then window[variableName]
or in your case window["onlyVideo"] should do the trick.

Python convert string to variable name

Try the following:

lst = ['spam', 'eggs', 'ham']
d = {}   # empty dictionary
for name in lst:
    d[name] = rat.readColumn(ratDataset, name)

Do not use list for your identifiers as it is a type identifier and you would mask its existence. The for loop can iterate directly for the elements inside -- no need to construct index and use it aganist the list. The d['spam'] will be one of your variables.

Although, it is also possible to create the real variable names like spam, eggs, ham, you would not probably do that as the effect would be useless.

How to convert a string into a variable name?

you can convert a string with the name of a variable into a real variable using load():

load("return string")

example:

print(variable)

eh equals to:

print(load("return variable")())

in your case, instead of

if effects[i] == user_input then

use:

if effects[i] == load("return user_input")() then

you can also check if the method works with print:

print(load("return user_input")())

Convert string to variable name in python

x='buffalo'    
exec("%s = %d" % (x,2))

After that you can check it by:

print buffalo

As an output you will see:
2

Convert string to variable name in VBScript

If it is possible to put it into application or session you could do something like session(variableName) = 5.

If not, the next easiest way is using a dictionary:

Dim myDict
Set myDict= CreateObject("Scripting.Dictionary")
myDict.Add (variableName, value)

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